IntegraMOD

Right now my site is approx 1900 x 1600 some of my users find the site/ text portals to small. Do I use extreme styles to resize? Haven't done this in ages and can't remember how.

is every page the same width or just viewtopic? can you post a link?
If your trying to resize the "header" (left side) and "footer" (right side) blocks, here is a link to the IMP manual.
IMPortal User Manual

It's my whole site in general and I have already adjusted my forum header and footer. so Style template I'm guessing. I'll try to switch styles and see if that works.

Now if I could enable my chat to be available to guests, how do I do that?