ROM for Via 8650 Android 2.2 - which is the right one?

[amarant]

Hello!

I need some help finding the right ROM for my tablet. I have this one:

http://www.androidtablets.net/forum/android-tablet-hacking/22066-help-identifying-unbranded-tablet.html#post127457

Since my tablet does not pass the boot, I cannot check inside for more information about it.
How do I know which ROM should I download? And where to get it?

Thanks for your help!