Hi Techwomyn
(cool nic--and the details do help). Which OSX version, btw?
http://www9.limewire.com:82/download/ has the oldest free ones I know of, but there are old jum versions available elsewhere--even though I doubt an older version will help.
I'd hoped the Airport problems would be fewer since Apple's release this week of another software upgrade for Airport, but I guess not in your case.
A few more questions: (sorry--
wish I could refer you to an easy answer)
Does your ADSL have any software controls, and can it connect via ethernet or USB?
Are you able to accept incoming connections? That's the easiest check for any possible connection blocks (network settings, firewall, router, etc). See the LW Preferences, bug reports and look for "received incoming this session=true"
cheers