Advice Any pifalls to Upgrade Norton Internet Security v20..

> My subscription's to Norton Internet Security v2005 is nearly up

They want £28 to renew. LOL!.

I can get New Nortons Security 2007, which includes Spam & anti Virus, v
ery resonable price < £15 on Ebay. It was far cheaper than the renewal of
Virus only

Q1 Do I need to unistall Norton Internet Security v2005 B/F reinstalling
v2007 ?

Q2 If so is the any easy way of restoring cuurent Antispam Setting in v2005
to v2007

thanks

davidarmes(nospam)@hotmail.com