[Q] Are there any custom roms for this tablet?

here is the link:
http://www.ebay.co.uk/itm/New-Androi...item3a79dad582

or this:
http://www.ebay.co.uk/itm/New-Androi...item4d04ef0e52

ive seen the CM9 ROMs for the Boxchip/allwinner A13 tablets, does this tablet fit that description?

also i was wondering are there any 4.1/4.2 Jelly bean roms, because that is what i am really looking for.

thanks. :)