This is so wierd! Do you have this problem with any other sites? Have you tried:
http://www.limewire.com/english/content/download.shtml
or just
http://www.limewire.com Pause for thought
hmmm I just googled error 403 and came up with this. It could be that your isp is very actively dicriminating against p2p in which case you would have problems using LW if you ever did get it!
http://www.google.com/search?client=...utf-8&oe=utf-8
This might be worth looking at too:
http://www.gnutellaforums.com/showth...threadid=33712
I may be totally wrong, but this is the only explanation I can think of. If you can, ask your isp what they are up to!