replacing AVG 6 free with AVG 7 free

I understand that I need to uninstall the old AVG 6 before
installing AVG 7, but I have questions (had a BAD
uninstall experience with my former anti-virus NAV): what
is the best way to do this properly so that there are no
conflicts and so I'm not unprotected at any point? Will
the sequence below work, and do I need to delete any files
after the uninstall of 6.0? I have not done this before.
Thank you for any advice/comments.
1. create a new folder on my desktop and download AVG 7
there (the old version was also installed on my desktop)
2. disconnect from internet
3. turn off all real time protection for AVG 6
4. uninstall AVG 6 from Add/Remove programs
5. install AVG 7