I would like to put my mod pack that got accepted and is downloadable on this site to be on the curse app so me and my friends can play, is that possible and can you help me?
Do you mean the web app or the mobile app? If it got accepted and is downloadable, it should be on the Curse Client already.
[Update] I just checked out your modpack. You set the file to Alpha, which means it will only be available on CurseForge, but not on the client (app). Change the file type to Release, and it will show up on the Curse launcher. :)