How does I know my Nova8 is rooted ?

I have updated to firmware Ainol-NOVO8Advanced-Android2.3-12.14
question is it updated as rooted ?

I have tried z4root.1.3.0.apk & gingerbread breaker 1.2.apk but to no success.
yes the USB debug is stick. ( or I can only root it when the firmware is freshly updated ?)

I need to uninstall some application s

Many thanks/

Ok I decided to flash with Ainol Novo 8 2.3.4 UK Rom V3.0/3.1 .. yes its rooted.
problem now is this version unable to access the Nand flash drive. Is the rooting procedure locked the Nand drive?
it show 1.78G available but not accessible using file browser / root explorer.

anyone? is there a rooted version "Ainol-NOVO8Advanced-Android2.3-12.14" that enable nand drive access.

I just flash with Novo8_V2.3.4_2G_Patch8d from Cheeyee. great rom rooted and fixed the drive issues.