How do i fix it so my fog lights stay on when i have my high beams on?

How do you have them hooked up right now? Are they the factory install lights or after market? Have you checked your wiring? It sound like you may have a bad wire connection somewhere.

The factory fog lights are made to turn off with the high beams, that how mine are, it's just the way they are, not a bad wire.
The only think I would think of is to change the wiring. Detach the wiring thats there, and run new wire directly from the lights to your switch inside.
I don't use my high beams enough to care, so I havn't looked into it, but the factory lights are connected to the headlights some how.

Take out the crappy oem lights and get aftermarket ones using the harness that comes with the lights. I have Hella 550's and they work great. When my highbeams are on I can see way far downrange plus I have great lateral and shortrange lighting from the hellas.

The factory fog lamps' relay is connected to the fog lamp switch which is then into the headlamp delay module (located under dash.) You'd attach the switch through a fuse to the battery or some other always hot connection to bypass this setup. Although, there are too many disadvantages to make me want to do this...

-Nick