3
First, make a backup of your work before you make the edits. You can either comment out the following sections or remove them.
I think this section is causing the inconsistency.
<tr>
<td width="945" height="19" align="center" valign="top"><div align="left"><font size="5">font>div>td>
tr>
Instead of a width of 945, you can try setting that to "93%" instead. If you like that, great, if not, try "100%"
From what I can tell, this row isn't doing anything for you, so you can experiment with removing it completely if you like.
A few lines lower, you have this:
| which I believe is setting a fixed width for your middle column. You may want to try "75%" instead. You can tweak the percentage until you have something you like. Maybe it will be "80%" by the time you are done.
I hope that gets you started. Another thing to explore is your use of 93% vs. 100% vs. 99% for width. The inconsistency may be causing you trouble. I would try to above two items first, and see what you think, before going further.
The source code looks like it is riddled with a lot of DreamWeaver junk to me.