try formatting the text so that it is smaller (although it is already small enough!) and delete some text and any spare lines in there.
You do have way too much text in your main section though but seen as though its all "SEE HOW IT DOES NOT STRECH CORRECTLY? " repeatedly, this shouldn't be a problem.
If you keep having problems, then get someone to do it for you or get another template/script?!
Not but really, try removing some un-neaded text & lines to make everything come together (especially in your main section).
You should consider slicing this template again if possible. You can follow these steps to get better results.
1. Add valign="top" in the <td> tags so the text doesn't "fall down" from the table.
2. Slice the "tables" so the bottom edge, including the corner, can be placed in a cell by itself. In that case, even if the table stretches due to a lot of text, it will bring the bottom edge of the table down as well.
You can also slice the corners and edges separately, and place them appropriately in a 3x3 table... the center cell is where the text will go.
It is really hard to fix it without the psd. There is even "white space" left in there as images and stuff...
Best you can do is generate a fake PSD from a screenshot of a "fixed" page, then slice it. You can fix it by removing the extra text; everything should then move up and look like an actual template or design. I'd guess that the quality won't be that great if you choose this approach, however.