There was a problem with mass storage drivers in WinXP at 9.0 SP3 release. There is a hotpatch that contains a fix. You'll need to contact support for the patch.
ok, where directly by Landesk or by MageLan where i buy my licences and i have support cotract ?
Generally you could go directly through LANDesk.
Also, if you get and apply the hotfix and you still have problems definitely make sure that support knows about it. I don't know of any outstanding defects with regards to the WinXP mass storage devices, but I just don't want you to think that if the patch doesn't fix it you're out of luck.