(a) Cant download at all - nothing happens when I click download, & also (b) Beware of Fake files in search results.

Try choosing those with 4 stars in the search results. Remember also you can get more results by right-clicking the search result tab & choose Get More Results. If they're genuine sources then the more sources you have the better chance of a successful download. Be wary of some hosts like RAZA as they are often difficult to connect to & often very slow & unreliable when you do. And don't forget the tips here How to find music