About emule, after you start the program, go to the section where it says "search", in the upper panel. After that choose the type of thing you want to search for e.g. video; picture; Audio; etc. In the search method (in the box right next to this one), choose either "Global Servers" (which presents the most frequent/used files), or the "Kad Network" (which presents more files than the previous, because it centers more on searching for every file someone else has regardless of availabilities). Type the name or part of the name of what you seek and hit the Start button. After all this a list will appear containing various files ordered in a specific way, just pick the one you want by double clicking on it, making it go to the "Transfers" section, now here's the boring part, depending on the amount of sources it contains (users who actually have the files on their computers ready to share), this may or may not take long. Oh and one other thing, by default emule will download the files to a folder named "incoming" in the directory emule is installed on, usually in the "Programs" folder of your hard drive, just look for emule folder, inside you should be able to easily spot the "incoming" folder i'm taking about containing your new downloaded files. Another easy way is to change the directory where you want these files to be saved (it could be anywhere). For this go to "Options" in the upper panel, then go to where it says "directories" in the small left panel, and then simply click the browse button which is at the right of the box where it says incoming files. Just choose a new directory you want and hit "Ok" and you're done. I guess this covers it... I hope i made it clear enough, if not i guess that i still need to brush up on my english. lol
Good luck!