Or, if the app is done, or you don't want to redesign all of your forms, you can download Active Resizer from www.vbgold.com
They have a trial version available, but the retail version is less than $30.

It allows you to drop a control onto each form, and then auto resizes it to match any screen resolution. It works well.

I bought it because my forms didn't look quite right at 800x600, because I designed them at 1024x768. I have about 55 forms to fix.

Then I used it for another app that I finished. It has paid for itself twice!