If you're saying it still has some flaws the same as previous versions, then why not get a current version with updated security features. Also all the articles I've read agrees that IE7 is a security improvement.
http://www.microsoft.com/windows/pro.../features.mspx
Especially for a non technical user who is going to us IE anyway.

Getting people to try standards compliant browsers is a whole other issue. If technical users had there way browsers like Firefox and Opera would have a dominant market share already.

Onyi
That said, if you are ready to try a new browser download one and give it a go. You can have multiple browsers installed on your system. So you don't have to make any commitment if you don't want to.