I did some investigating, mostly by disguising Safari as MSIE 6.0 and bypassing the JavaScript checks. It turns out that AIM Express does work in Safari, and pretty much flawlessly. You don't even need the Debug Menu activated. Here's how to (hopefully) get AIM Express running on an unsupported browser, in three (easy?) steps.
Note: I didn't test this with .Mac screennames. I don't imagine it'd be any different, but somewhere along the line it might reject the @ symbol in the screenname. Furthernote that this has only been tested on Safari.
- Head on over here to log into your AIM account.
- After a few redirects, you'll be sent to a seemingly blank page with a lengthy URL starting with http://aimexpress.oscar.aol.com/aimexpress..... View the source of the page (Command-Option-V in Safari). In the middle of the source, you should see a big chunk like this:
Note that if you see any errors, some of them must be closed with the red "close" titlebar widget -- hitting the OK button on these troublesome errors simply makes the message pop up again.mWin.document.location = "http://aimexpress.oscar.aol.com/ aimexpress/launch.adp=&siteId=aimexpressprod&siteState=&mcAuth= z%252Bq7hML2MDhdtBF8AdILpQ%253D%253D%2ddiAxLjAga2lkIDIwMDQwNzI5M DEwMDAzMDQADXCw%253D%253D%2dxUwMcVB%252FvVFhKk1lzV9uNpj49DFnX8qJ 8QpkjlsF5bZidYuHXqQMIDsT1KbozsG6E59PDqwQ6SacbV5J%252ByOrTHZ8lmD2 ekF8tdjVxt%252BIK68DgV%252B7DY8AztbR%252B7gycpB55dP5otdLrVChUJ%2 52Bk7rA%253D%253D&interWidth=270&interHeight=180&"
- Copy the URL, starting with http:// and ending with 180& (don't grab those quotes). Paste it into a browser window to load AIM Express. You'll be asked to log in a second time. At the end of this step, you should be viewing a page which says "Closing this window will disconnect you from the instant messaging system." Not only is this true, it also goes for opening a new tab in that window -- open a new tab, and poof, you're disconnected.

