How about this:
Recovery Rootfs :1:0x00a00000
Boot Env :0x000c0000:0x00020000
Normal Kernel :0x00100000:0x00400000
Normal Rootfs :0x00500000:0x00100000
Recovery Kernel :0x00600000:0x00400000
Normal Boot Env :0x00f00000:0x00020000
Recovery Boot Env :0x00f20000:0x00020000
Raw Data Table :0x00f40000:0x00020000
Boot Image :0x01000000:0x00100000
My guess would be that you should not touch first 3 partittions and anything before...
There is no BIOS - at all and you could read u-boot and Android documentation if you would like to know an exact boot sequence. I believe it is prety standard Android partitioning...