[gr8fl4porsche]

Outlook Express is a part of Microsofts Internet Explorer. This is the most popular service in the world - also the target of all the computer virus' you have heard about. Notice that I wrote 'heard' - you have been shielded from this by using aol. To avoid virus' I recommend Netscape Navigator with a virus protection program running in the background - probably not necessary but you never know.

If you decide to go with Outlook, get good protection.
Outlook by the way is fantastic - especially if you use multiple mailboxes - it is one of the few services that can handle and check various mailboxes on various servers and it lets you know what mailbox each of the emails was sent to.