http://stusgames.awardspace.com/test/index.htm

Okay here's the thing. I have 2 problems I need help with. they are as follows.

1: How do I get the grey of the tabs to continue on until same length as the nav bar?

2: How do I get Internet Explorer to stop sticking a gap in between the Navigation bar and the locations bar?

Sorry if they are noobish questions but I'm only just going back to web design and can't remember anything .