I can't seem to get my script working!

i've got a samba pdc wich runs kixtart. but my regist5ry settings won't be processed unles i'm the user is a member of domain admin group.

with this function everything works fine.
but when a user who isn't a domain admin logs in it al goes wong. the script wont write into de register i have settings for hkcu and hklm but it just won't write in it.

i've installed the su command and got it working only i stil wont see the registry entry's

i tried su with the -l option and then the script puts everything in the .default but this also doesn't work it won't be proecessed but i can see the hacks.

but i just cant write the registry for the user who logged in?

could you please help me