More Mozilla...
 

Does anyone know a way of making the internet icon open
a new window of the current mozilla instance, and NOT a
new instance (which then prompts for a new profile and gets annoying...)

--Thanks

i think it is something like the following :
mozilla -remote openURL(http://whatever.com,new-window)

it's funny...that's what i tried, crashed it, then wouldn't do anything...
has anyone had much success with something that isn't mozilla?

use firefox d00d ;)
you'll probably enjoy it ..
i know lots do, even myself
http://www.mozilla.org/products/firefox/

Firefox still doesn't address the underlying issue of multiple instances, though.
This seems like it would be a fundamental thing for the program to handle, but you still need to use a workaround for multiple "firefox url.html" commands.