Ok, I am starting this new thread to make it easier to update the link for NASair (i guess that is the name I am sticking with unless someone has a better idea). I will post the newest updates here and you can download the latest version from the link at the end of this post. This should make it easier for people to find the info they need. below will be a list of install and use instructions as well as system requirements.
****INSTALL INSTRUCTIONS****
1. directly below you can download the zip file of NAS (this will be the most up-to-date link)
2. you need to download and install adobe air from
here (this link will take you to the appropriate file for your OS) , you should also make sure you have the latest flash player installed on your machine
note: if you you are using linux you should download the adobe air .bin file from above, run $ chmod +x nameOfAdobeAirfile.bin, then $ sudo ./nameOfAdobeAirfile.bin this should start the installation wizard for adobe air (tested on Ubuntu 8.04 +)
3. obviously unzip said zip file. you should be left with NASair.air
4. double click to install. if adobe air was installed correctly it will give you a standardish install wizard, painless really.
on the first time you run the app you will be asked to locate your music folder (i.e music/iTunes/iTunesMusic) and double click to select.
next NASair will now attempt to import the album art to use in the app. if you have a folder in your documents directory name "NAS AlbumArt" you will be taken to the image association tool. here you can manually associate images and albums by clicking both the image and then the matching album and then clicking "manually associate". When you are done you can click the "Click to finish Manual Association" button to well, finish.
if this is all to much and way to involved, then i am with you. There is a better way. follow the instructions below to get this whole thing done faster.
1. if you have access to all of your album art then all you have to do is put the jpg or png file inside of the corresponding album's folder inside the "NAS AlbumArt" folder in your "documents" directory.
2. if you do not have access to all of your album art but you have had itunes auto download album art for you then NASair will decode the downloaded images and stick them in a folder "NAS AlbumArt". From here you can then move them accordingly.
3. now in album art tool just click "Auto Associate" and you should be good to go.
you should only have to do all of the above steps one time. MediaCar keeps a record of everything and even where you were inside the app and what song was playing.
*****System Requirements for Adobe Air (copied directly form Adobe's site)******
WINDOWS
Intel® Pentium® 1GHz or faster processor
Microsoft® Windows® 2000 with Service Pack 4; Windows XP with Service Pack 2; or Windows Vista® Home Premium, Business, Ultimate, or Enterprise
512MB of RAM
MAC OS X
PowerPC® G4 1GHz or faster processor or Intel Core™ Duo 1.83GHz or faster processor
Mac OS X v10.4.910 or 10.5.1 (PowerPC); Mac OS X v10.4.9 or later, 10.5.1 (Intel)
512MB of RAM
For Adobe® AIR™ applications featuring full-screen video playback, the following hardware configurations are recommended:
WINDOWS
Intel Pentium 2GHz or faster processor
Windows 2000 with Service Pack 4; Windows XP with Service Pack 2; or Windows Vista Home Premium, Business, Ultimate, or Enterprise
512MB of RAM; 32MB of VRAM
MAC OS X
PowerPC G4 1.8GHz or faster processor or Intel Core Duo 1.33GHz or faster processor
Mac OS X v.10.4.9 or later or 10.5.1 (Intel or PowerPC; Intel processor required for H.264 video)
512MB of RAM; 32MB of VRAM
Linux
* Intel® Pentium® III 1GHz or faster processor, 512MB of RAM
* Recommended: Pentium 4 2GHZ or faster, 1GB RAM
* Fedora Core 8, Ubuntu 7.10, openSUSE 10.3
***I have only tested on Ubuntu 8.04 and 8.10***
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***********CHANGE LOG*************
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- update for compatibility with windows machines (good luck, still minimal testing on windows machine)
- somewhat better error handling for everybody!
- fixed error where after a song finsihes next song is not played
****ver 1.something****
-shuffle now works
-ATT button now returns volume to it's original level
-added icons to buttons on music page
-fixed a bug with coverflow not loading all instances of albums
-fixed other minor bugs involving error handling
-if you are noticing that coverflow is stacking all the images on top of each other instead of to the side, click the "day" button and that should temp fix the problem. i am looking into the cause of this bug
oh yeah the name of the app is now NASair, since media car is taken and i am really not that creative with naming (i was just thinking of naming it BOB and be done with it)
****ver 1.something.1****
- changes in music player UI
**** v1.2****
bug fixes
-fixed an issue with the itunes album art decoder not working properly
vol control UI updates
****v1.2.1****
added ability to click volume pop up box to close on the event that it does not close automatically
****v1.3****
added visualizations
added Fullscreen mode
added animations for page changes
added UI for album/album art association
updated "daytime" skin to be well, better looking
various bug fixes
****v1.3.1****
fixed an issue where mp3s would be played twice simultaneously.
****v1.4****
added new ability to associate images named after the artist and album
under-the-hood improvements to help with loading and performance of the app.
****v1.5****
improved coverFlow experience
bug fixes
improved image association work flow
better linux support
minor testing in linux 8.04 & 8.10
check out the next post for further instructions on the use of the new features!!
****v2.0********v2.0****
improved UI
added clock
added visualizations
improved stability
added ability to auto update from removable disk
added ability to control Music playback & volume via key presses
various bug fixes
****v2.1****
Added "transparent" mode for better use with a seperate GPS app.
Added another music visualization.
UPDATE 4/1/09:
--fixed an issue when going into transparent mode, music visualization appears on screen.
--made transparent window more readable
****v2.2****
Added support for displaying embedded album artwork for mp3 files
please download this newest version and discard and forget the old one 
Linear Mode
