Storage

If you're asking for assistance (as opposed to just permission!) we will need some more detail. Presumably you are looking for a recommendation of which software to use?

As a start can you tell us:
* What OS the clients are running?
* How many clients there are?
* How much data needs backing up?
* Do you just want files, or do you want to be able to restore the whole OS?
* What OS does the server run? How much space do you have for the backups?
* How often will the backups run?
* What speed is the network?
* What's your budget?

Depending on your answers to the above, some thoughts are:
* Don't do client backups. Use Folder Redirection (and Offline Files if needed) to get all important data on the server.
* Use xcopy from a Scheduled Task.
* Script Windows Backup (Win7 only) using wbadmin to save to a network share.
* Use commercial software. Many provide licenses for lots of desktops when you purchase the server edition. I'm pretty sure Backup Exec does, and think ShadowProtect does too.