I've been wondering for a while now, if I wanted to add music into Skyrim so that the game would play whatever it is depending on where I am, where would I put it in the game files? There are a few things I wouldn't mind adding like music for indoor/outdoor environments, I just can't figure out where they would go.

Also, I'm wondering how I can upload a screenshot I took of my character into my avatar picture. I don't want to just grab a picture off of anywhere (cool as it might be) and just make it into my avatar. I followed the forum instructions but the screenshot doesn't have anything to tell me what file type it is, but I want to be sure I need to upload it elsewhere before I do unless there's another way of doing it.

From my personal experience, I wouldn't suggest adding new sounds. I was using a mod called "Sounds of Skyrim". Even though it's just a mod that added new sounds, it did break a few of my quests from progressing. The most notable one was "The Cursed Tribe" where Yamarz wouldn't spawn in the last cave. I tried this with having only that mod open and it really did break it. So as I said above, I wouldn't recomend it