http://www.tabletrom...found-here.html
The links to the roms and updates are at the above page. They were re-posted as Megaupload was closed down by the site owners. The install method is shown in the thread too, but it is essentially a case of installing moddedstock 1 or 2, observing all wipes (user data, cache and dalvik cache, which is found in the advanced section of CWM). Install VC version B or N, then the corresponding update, ensuring the letters match. So if you install the N rom, you have to install the N update. If you install the B rom, you have to install the B update. You don't need to wipe the data and cache between installing the rom and the update. To summarise:
1. Download moddedstock, VC version B or M and the corresponding update.
2. Copy the zipped files to your sd card, and boot your tablet to CWM.
3. Install moddedstock 1 or 2.
4. Reboot to CWM.
5. Wipe data, cache and Dalvik cache (Dalvik cache is in the advanced menu of CWM).
6. Install B or N main rom.
7. Reboot to CWM.
8. Don't wipe caches or user data, but install the B or N update, ensuring the update letter corresponds to the main rom.
9. The tablet will boot to the main menu, and the job is done, ready for you to personalise your tablet.
As for which versions of the moddedstock rom and the VC rom; this depends on your tablet. Without getting too technical, different tablets store data in different ways, even if they are the same make and model. Some respond better to one combination, other tablets respond better to a different combination. It's a case of trial and error, I'm afraid.