That's me! I have another dumb question....

Here goes.
I know that AIM and YIM are big security risks. I found the downloads for aim stuff on this site, but have no idea which , if any I need to use. Or if I need to delete the AIM I have and download one of these! Or are these downloads for something else entirely? Please help, I am a newb to PC security and don't like doing things wrong in the first place.

Also using YIM. Are there any security downloads for them?

If it helps, I am on a dial-up modem and have NO plans on upgrading to DSL or cable anytime in the near or distant future.