you can right click and choose to delete them. Are they all the same printer being added?

Your networking issue can be something as simple as an over aggressive firewall. But in the instance of an upgrade install of XP, I always have the feeling that some anomaly is left over from the previous install and is causing problems. A clean install of XP is always preferable.>>>>

http://michaelstevenstech.com/cleanxpinstall.html