You can do what you seek. Go into airport utility, then to the internet tab. For connection sharing, set it to "Off (Bridged Mode)". It will no longer try and get an ip address from the ISP.
there's a google group for support, ask iSSH/iX11 | Google Groups
I don't use the ssh client much so far, just the vnc interface. But the developer posts a LOT. He's very receptive to questions.
I let my realtor talk me out of an inspection on my current house (because we were offering significantly less than what it was listed for), and I've been driven crazy by the stupid shit about this place ever since.
I had a gluten free pizza, but I spent the day making red beans. Ham hock, adzuki beans, 3 bell peppers, 5 stalks of celery, bam, salt, rosemary, and cayenne.