CSS Form Question/Issue

I'm working on this CSS test page and I am encountering some problems that I hope someone might know how to fix. The state and zip are supposed to be on the same line as the city, and the date and phone # are supposed on be on the same line as each other. Anyone know what I am doing wrong?

Also, in IE the last name box drops off the top.

http://webtrain.austincc.edu/~lbrown/circulontestnew.html

Please let me know if you can help.

Thanks!