ha, actually, it was working fine with that change in script editor, but (there is always a but) i can't make it work inside adium (in a conversation, or in the status), still fiddling around a little,

it looks like geotool.servehttp.com got tired of the curl requests, or maybe it was an accident, but simply spoofing an actual browser with curl fixes this addon.

the line will look like this
set theSite to paragraphs of (do shell script "curl -A 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)' 'http://geotool.servehttp.com/?ip=" & theIP & "'")
or whatever agent you want

if it's helpful, i could upload an updated copy??