Today, i installed WA again, and connected to wormnet.

When i try to join a game, i can't get through! a box comes up, saying Sum 13 Worms Armageddon, and then it says: Please ensure worms armageddon is in the drive. So i take the disc out, and put it back in again, and i go back on wormnet, and it still says the same thing when i try to join someones game. When i use hostingbuddy to host a game, this happens as well.

Can somebody help me?

Install the latest Beta version.
If you already did that, or that doesn't fix your error, make sure your disk isn't scratched or otherwise damaged.

Because i haven't played WA for like 7 months, i've forgot what patch is the latest.

Is Version 3.50 the latest?

it's 2.6.28.0

3.6.28.0 you mean.

Alright, i got it sorted, and i can connect properly now.