not looking well arranged in mozilla firefox

Jun 2 2010 5:58 AM

Hello, I have created a website in ASP.Net. It works perfectly on Internet Explorer but on Mozilla Firefox it looks not well arranged. I mean any other row goes up on another row and <td> or <tr> tags bgcolor goes up. I have used table and div tags only as a separator for my texts. It is working very-very perfect in Internet Explorer but just very bored in Mozilla.

Why? help me