AVG AV + Linscanner (Paid version) and WOT site advisor

I have 2 questions and need to know if what I've been told is correct. The sooner, the better as I've had too many computer disasters. More importantly, I know THIS is the place to come to. Best forum on the entire Internet.

1) This week I purchased the paid for version of AVG 2011 antivirus (not the suite) which also comes with Linkscanner. My question is this: Now that I have Linkscanner running, must I uninstall my free WOT site advisor? I'm thinking it might cause a software conflict, cause a lag or some other horrid problem. I'll feel naked without my WOT but will drop it instantly if it is the wise thing to do. Please advise.

2) We have Verizon Fios (super-dooper Download and Upload speed - like WOW!!!) and are behind a router. Both are computers are completely and totally separated from each other and I was "told" that this is considered a NAT device and that it could be considered a firewall. That I am fully covered if I have this and used the free Windows firewall. Is this true?

If not, since I just bought the AVG 2011 this week, maybe they will let me change my subscription to the Suite and I can pay extra to get their firewall. I don't want to leave myself vulnerable in any way. I've had an unbelievable amount of computer nightmares and lost billions of files and everything else. Again, please advise.

Happy Turkey Day to one and all

 

They work fine together with no conflicts. The ratings do differ though.