I don't know if the Liliput timings are different from the Xenarc timings.
My board is a 945GM and I have the add-on DVI card.
As soon as I get back after Memorial Day (May 28th), I'm going to start testing the tweak(s) with a 7" Xenarc.
It's very possible that the IEGD drivers only (easily) work for those with only analog VGA, and that I got the encoding wrong in the .INF tweak.
Unfortunately I'll be out of town for the next few weeks, and won't be able to do any testing until later this month.
The drivers you mentioned in the older thread may not work.
You can try these, which was the first driver package I built, which worked for the thread starter:
http://moschini.org/945GM-800x480.zip
-G