No matter what mp3's I download on this version, I always get Need More Sources, Awaiting Sources, and Waiting on Busy Hosts. Nothing EVER happens, nothing at all, I have not been able to download a single song. I have tried already reinstalling it quite a few times and the problem still exists. I do NOT want to upgrade to 5.0 because that version sucks. Please help if you can.

Downgraded to wrong version for continuing incomplete files; Downgrading to LimeWire 4 from 5 & resuming incomplete downloads

That is not the issue. I never had version 5.0, so I don't have incomplete files that I am trying to find. I am trying to download ANYTHING and NOTHING will download, EVERY SINGLE THING I try to download comes up as either saying Need More Sources, Waiting on Busy Hosts, or Awaiting Sources. This is getting a little annoying. What is the issue and what do I have to do???

Here's some tips How to find music which also applies to video. Some other tips for video: Movie download issues (click on blue link) (2nd last post has information on best video formats.)

I have a suspicion you would be better off with LW 4.16, but that's only IMHO. If you did downgrade back to LW 4.16 you would need to follow the tips as suggested in my very first link in post #2 since both LW 4.18 & 5 use the same location for download preferences. I personally use 4.16 & find it a much more effective version than 4.18, as do many other people.