Andrew_Low has provided a copy of his stock FROYO backup, which I tested on my tab and confirm that it is working. The kernel is rooted, other than that it is a clean ROGERS rom. For further details on this refer to post 2.
He was also able to capture the GINGERBREAD update (which I have not tested as of yet, any testers please post your results).
This is the stock update available from KIES. For further details on this refer to post 2.
Many thanks to him for this, if it helps you, hit his thank you button. If you find this thread helpful as well, hit my thank you button.
Instructions on flashing are not provided. If you need these files it means you know how to flash your device, have flashed a custom ROM previously, and require this to return to a stock state.
As usual FLASH AT YOUR OWN RISK, don't blame ANYONE here for ANYTHING.
PLEASE NOTE: The FROYO stock ROM is currently unavailable, will be back up soon.
Downloads can be found here
Further more, I would like to thank kpetrie77 for setting up a wiki on the Samsung Galaxy Tab, the wiki is full of great links for all things Galaxy Tab. You can find it here, and if you have anything to contribute please do so as it helps everyone here at XDA.