I am using the free version. I have typed in probably 50 titles to songs and it doesn't download anything. It shows that I am connected and there is no problem with my firewall. I can't believe there is no song out there that I can download. Any suggestions on what I may be doing wrong? Thanks.

Choose those with excellent under the quality column in search results.
Try not to choose any fakes or viruses either; Virus thread: Typical virus spam file sizes - Make a note of them (click on blue link to see)