cannot detect my hard disks?

[vvurff]

Hi all, I'm pretty new to OSX86 (about 4 days now) and I tried iATKOS 4.1i (works pretty well), iDeneb v3 (hmmm) and just tried Leo4all v3.
I'm using my Dell M90 (company laptop - don't tell the IS dept ) and installed OSX on a usb hard disk. iATKOS and iDeneb still let me access the laptop's internal harddisk but it is not accessible from Leo ... any idea how come? can I fix this? Kinda need it because my other Mac soft is on the D partition

Next to that, none of the installs bring me sound or WiFi, both being pretty crucial as I want to try out Garageband and need forum access ...
Audio is Sigmatel - something (unclear)
WiFi is Dell 1490 mini card

are there fixes for this and where can I get them?

thanks. all input is welcome