Should I remove the passwords in Internet explorer 8 when I use Identity safe?

Dear,

  

If I remove the passwords in IE will it be impossible for someone to gather my log-ins, when I use Identity Safe to fill it for me?

 

An additional question:

 

Can someone retrieve the information that I created in Identity Safe without knowing my password? I mean log-in files for certain websites, information that can be entered in online forms that I entered.

 

Thanks in advance,

Kind regards,

Nielsvds