Something I always find handy with free trials is this little trick. Change the date of your computer(bottom right of desktop screen with windows) forward 2 years, just before you install any free trial. Once installed, change the date back. Usually works, has always done so for me. But, if there is a free trial that limits the features...
Try downloading a program called Kazaa from
www.kazaa.com
Search for the program you were using. Most of the time they have versions that have been 'tweaked', if you know what I mean.
Anthony.