Given that you have not given any details on what you are using as your desktop environment, let me make some assumptions..
You have samba installed, if not install it from http://ftp.sernet.de/pub/samba/suse/
In both gnome and kde, if you open a file browser you will see an option like "Connect to Server" from file menu. When you click, you would be able to chose what kind of server you want to connect to. Most likely you are connect to windows server, so chose samba server. New window will open, where you can enter the ip (Here, I am not sure, but try server.co.gr , or find the IP address and enter that), for share name use "username", which is a folder that is designated for you. Also, in this windows you would be able to enter credentials too. Once done, click OK and see if it is mounted (usually onto your desktop) correctly.
If you are connection to linux server, instead of chosing "samba server", select ssh server follow the same procedure above...
If above fails, try mounting in /etc/fstab..
For samba mounts:::
//server.co.gr/username /mnt/studentdrive smbfs credentials=/etc/youcredfile 0 0
For NFS mount (if you are connecting to linux server, I doubt it though)
You may have permission issues, so I do not how to get around it...
I hope this helps you out.