When I installed, moons ago, no problems.
Just tried again with my Sprint 8830:
(1) Open BB Browser.
(2) Go to bookmarks.
(3) Under "links" there's a "Install AOL Instant Messenger (AIM)" choice.
(4) It does, in fact, now give a 404.
So, I checked out the link: www.blackberry.com/instantmessage/aim
. I removed the "aim" and got a "Search" button. "Clicked" it and then it showed me a list of IM apps for my device: Yahoo!, Google, and AIM. However, it says that AIM is not compatible with my device.
Looks like, for some reason, Blackberry decided to pull support for this program. Either for the 8830 or for Sprint.
However... going to www.blackberry.com/aim
worked just fine. It downloads AIM 1.1.15.