NIS 2010 trial questions

Hey folks, need some help here with Norton Internet Security 2010 trial version.  I've been trying to evaluate Norton for my computer, but having problems doing so. 

1st-I keep getting notices on my screen saying I need to update, but when I try to do so...it says no updates available.  So, with a 90day trial there will NOT be any updates?

2nd-I have 2 users on my system with different ID's.  One has a spam folder & can see what is being removed from their email; but mine keeps removing spam but doesn't put it in my spam folder or in the deleted folder....I haven't a clue what is being removed or where it is going?

Bottom line, it is very difficult to evaluate Norton if everything isn't working.  I don't want to buy this if I'm buying problems that might continue after my trial.

Anyone have suggestions and/or info.  Can't get anything from Norton since I'm on a trial version...very frustrating!!

 

 

[edit: Clarified subject..]