Layouts turn messy in firefox

[runeer]

hi all,
i'm not sure this is the right place to post my questions as i'm new here.

i'm a graphic designer who's not code savvy, i basically put all my design in dreamweaver together with css. the layouts are perfectly shown in internet explorer, but become mess in firefox.

here are the links to my sample pages:
http://www.virtuoso.com.my/hwang_test/about_committee.html
http://www.virtuoso.com.my/hwang_test/investor_family.html

would appreciate any help to correct the problems, thanx!!!

[runeer]

hi all,
i've validated both html & css with this test file, the layout still looks bad in firefox... :(

http://www.virtuoso.com.my/hwang_test/test_doc_trans.html