Conflict with my Wireless internet and home network

I using Windows XP Pro on my laptop. I have a wireless router set up for
internet. I brought home an old server from my office that is running server
2003. I don't know how to make them operate together, so they are completely
separate. It works fine on other computers in the house that are not
wireless. On my laptop there seems to be a conflict. If the network cable
is plugged in, the internet works intermittenly and frequently causes outlook
to stop working. If I close and attempt to re-open it ignores the command
until I re-boot.

Scot