I've started working with asp.net. I've done my programming and testing on an XP Pro system and it works fine, but when i upload to my server machine, i get a 404 error. What am i supposed to do to enable aspx files?

On my XP machine i installed VS.net which installs the .net framework, but my server already has it. anyway here is what my server is running:

Microsoft Windows Server 2003
IIS 6.0
.NET Framework 1.1

was there some other configuration i had to do to enable asp.net on my 2003 server?