I have a real problem! I wanted to download a music video (tears don`t fall by bullet for my valentine). But what I received was not a music video but a porn movie! It can`t be deleted now, because I`m no administrator or something.... what can I do?

Well first of all you could look at the file size to give you an indication if it is a fake file. Second you can use bitzi to look up the file by right clicking and then clicking on bitzi lookup.