vold.fstab question

Hi there......

I try to deal with the internal memory. I got a Coby 1045-8 with stock ROM. Everything except the internal memory is working well. I tried cm10.1 custom ROM and lost Touch and WIFI, but with this ROM, the internal memora was back again. The vold.fstab was like this:

dev_mount sdcard /mnt/sdcard auto /devices/platform/sunxi-mmc
dev_mount nand /mnt/nand auto /devices/virtual/block/nandi

The vold.fstab in the stock ROM looks like this:

dev_mount sdcard /mnt/sdcard auto /devices/virtual/block/nandk
dev_mount extsd /mnt/extsd auto /devices/platform/sunxi-mmc.1/mmc_host /devices/platform/sunxi-mmc.0/mmc_host

Of course I tried to just copy the lines, but was unsucessfull. Can anyone give an advice, how to get the internal memory back agai at this stock ROM? Or maybe how to make compatibility.zips for CM10? :)

Thank you for reading....