they worked on my laptop and still do but they dont on my new desktop iv tryed both my legit Solos and tours both dont work help plz
No, you need to learn how to use google, a lot of the things you post are "Please help me" threads, and many of them are simple fixes that you can find by searching google.
Are you sure your jack is working? if it works, plug the headphones in, go to (IN SKYPE) Tools --> Options --> Audio Settings --> Under speakers, select your headphones.