Backup to windows server

Hello guys,

My office is a windows enviroment. They use a windows 2003 server machine....everything is ugly windows. However, after some discussion with the IT people (not the brightest IT team, though), they allowed me to use my powerbook for my day to day business (hooked up with external monitor, keyboard and mouse - dual screen is a delight).

They asked me for one thing though. All computers in the office are backed up in the server, and the IT guys didn't know any software for automatized backups to the server. I have a very simple program that came with my LaCie external HDD (silverkeeper is the name). will it work? should i wait for leopard? should i buy a particular software?

Any help would be greatly appreciated.