[ale] Tunneling from behind firewall to my firewalled desktop

[tom]

I'm getting annoyed with my (current) inablility to get this working.
I am spending a fair amount of time working at a site with wireless
access which appears to allow dns and http type access only. I want
get to my desktop at home, which sits behind a Linksys hardware
router. I've tried ssh directly, and that appears to be blocked
at their perimeter. So I've got a twofold question:

First - how do I locate which ports their firewall has open on the
very qt? Since I can web surf, and access secure web pages, without
formally setting up a proxy, I expect I should be able to get out
on those ports, but I like the idea of knowing what is going on
anyway.

Second - On the home end, what do I need to do to this silly
Linksys BEFRv4 blue screen errr... box to move a connection from
either port 80 or port 441 to where I have ssh enabled on my desktop?
I'm not having much good fortune on this.


Thanks in advance