Flash Custom Rom on china tablet I have a chinese tablet with the allwinner a13 chip, that I want to flash a custom rom to. Rom Manager doesn't recognize the device, so I can't install clockworkmod recovery... 

So how can I go about flashing a custom rom to this tablet?

same specs as seen here http://www.slatedroid.com/topic/51050-quantex-9-kb901/
Micromax Funbook is a clone of AllWinner A10 chipset based tablet. I once had to flash a ROM and asked this question.

The link that I had used to flash the ROM including the ROM itself are available in the answer.  You could try that flash tool to install a ROM of your choice - but there is a pretty good chance for you to be in trouble if you flash an incompatible ROM.