So close, yet so far away!
With a weekend of ThinApp and WINE tweaking/hacking atop iMKS Project's WINE install, this is as far as I could get running the VI Client on my PbG4. Interestingly, I tried the VI Client in a WINE-only environment as well, and got just as far with that as my Thinstall bundle. I did an end-run around schannel.dll issues by disabling SSL on my host. Once past that, I get an error parsing the server's config.xml file. I think this is due to the VI Client failing on a .dll somewhere in the winsock/network stack. There's also more issues pointing to XML-parsing problems in WINE's .Net install. If this can be made to work with ThinApp on-top Wine, we will have a VI3 Client that essentially runs on PowerPC Macs, Solaris and Linux (Oh yeah, WinTel too. Heh...)
There was one nice take-away from this failed VI-Client-on-everything mission... I got Office 2003 running in WINE and I've figured out a couple of wierd FreeNX/X11/Wine issues that were annoying the heck out of me. It's unbeleivably cool how close iMKS has gotten to being a free and open alternative for running Windows software over the 'Net, acting as both application and terminal server.