Adjusting column width in project.php

Desperately tried to find how to adjust the column width in the project.php page that appears when first entering project tools, especially the 'active_issues' column. Have tried options in product_vbprojecttools.xml only to fail. Found nothing in templates either. Anyone?
THANKS.

[Mosh]

You will need to edit the pt_overview template to adjust the width.

[Giray]

Thanks for that. I tried but to no avail.
So I cheated. For now, I did manage to increase the font size of thead and it gave me the added width to the column. But thanks!!