First off...

Limewire is not Napster... never has been never will be...

Second....

Limewire is not Gnutella... never has been never will...

Gnutella is the name of the network... Limewire is a Gnutella network browser... think in terms of the WWW (world wide web). There is the network (ie: all the web pages) and you view those pages with a web browser (ie Netscape & IE).

Limewire allows you to connect to the gnutella network... this is entirely different than the Napster netowrk.

The only way to get back on Napster if you got booted is to edit your registry... and since you can't...

Gnutella is probably being block by your network admin... try changing the port that limewire operates on... go to options and then to the "network" tab... change the listening port to another number...

depending on how the network is set up this may work... your best bets are to try the following ports (they are ussually not blocked cause they are needed for other things):

21
80
8080
110

If you these don't work than chances are you aren't going to get on... sorry...