You have:
Code:
<a href="http://catocom.tripod.com/files/forklif3.zip" target="tlx_new"><img alt="ltrhead2.jpg" align="" border="" src="http://catocom.tripod.com//sitebuildercontent/sitebuilderpictures/forklift.jpg" width="240"></a>
In that code, you have it to popup a new window.
Code:
<a href="http://catocom.tripod.com/files/forklif3.zip" target="tlx_new"><img alt="ltrhead2.jpg" align="" border="" src="http://catocom.tripod.com//sitebuildercontent/sitebuilderpictures/forklift.jpg" width="240"></a>
So just take that target code out.

Code:
<a href="http://catocom.tripod.com/files/forklif3.zip"><img alt="ltrhead2.jpg" align="" border="" src="http://catocom.tripod.com//sitebuildercontent/sitebuilderpictures/forklift.jpg" width="240"></a>
And it should work now. This won't popup any new window..just the download window.