Norton 360 Questions

Hi.  I have a seven year-old Gateway, XP SP3 with Norton Internet Security.  My subscription is almost done and was thinking of purchasing Norton 360.  Had some questions:

 

1)  Does 360 have the same firewall and anti-virus protection as Internet Security?  I do like how my google searches are safeguarded with green checkmarks.

 

2)  How good is the backup software?  Could I backup individual files and folders to CD/DVD?  Would I be able to backup/restore a hard drive image?  If I backup a large folder, would the software burn multiple DVDs?

 

3)  Before I install 360, should I uninstall Internet security first?  Is there a Norton clean utility I should run to remove old components?