licence questions

Hello, this is my first post here since I've come from BitDefender community.

Being tired of buggy BDIS2009 I think I'll give NIS a try.

Got 2 questions though -

 

1. Is it possible to obtain a licence for NIS2009 for 1 Pc only? All I can see at Symantec store is a licence for 3 PC's.

2. I can buy a licence here in Poland for NIS2009 but Polish version. Will it work on US downloaded version as well?

Point is I got US version of winXP Pro installed here, and all software too. I wouldn't like to mess my system with any other language.

 

TIA