Trouble Connecting My Mac to a Windows Ad Network



First of all, thanks for the help you are rendering to the community, it is much appreciated! :)

My company is running a network based on Windows Server 2003 AD. The user accounts are managed in the AD system.

We have a couple of users on Powerbooks running OS X 10.4 Tiger. I am facing difficulty configuring these machines to properly log into the AD network. I tried using Directory Access > AD to configure the machine, the network binds normally but when I tried mounting a drive, I will get an error.

Short of using AdmitMac, can I know is there any way to help me resolve this issue?

Thank you!