I\'m not sure what you want to do. If you want to be able to connect to your PC\'s shares from anywhere, I can\'t help you (and I\'ll note that MOST users, though perhaps not you, have very limited upload bandwidth even on DSL/cable).
If you want to connect to PC shares from your zaurus, that\'s as simple as installing smbmount, and calling it (I haven\'t gotten it to work from fstab):
# smbmount //PCName/sharename /some/dir/on/your/zaurus -o username=PCusername,password=pcuserPassword
Then the directory you specified on the zaurus mounts the share.
To unmount (and the zaurus won\'t let you turn off the network connection until you do):
# smbumount /some/dir/on/your/zaurus
Note that parts of the zaurus filesystem are read only, notably / (root), so creating a directory off root to mount to won\'t work.
Also note that mounting will require that you to issue the smbmount command as root:
su root
Also consider install openssh, in order to log into your zaurus from your PC.