If you want to search for RapidShare files using Google, here's how to do it. For the start of your search, use site:rapidshare.com, this will limit your search to RapidShare.

Next you need to add some search criteria to indicate the type of files you want to find. These will all start with inurl: and then have a list of file formats separated by the pipe character (|). Here are some examples:

inurl:avi|wmv|mpg|nva for video files
inurl:mp3|ogg|wma for audio files
inurl:pdf for files in the PDF format
inurl:exe for application executables
inurl:zip|rar|7zip|tar for compressed archive files

Lastly you can include the search terms that describe the specific file you are looking for. Here are some complete example searches

site:rapidshare.com inurl:mp3|ogg|wma Lords of Acid will find audio files by the Lords of Acid.

site:rapidshare.com inurl:avi|wmv|mpg|nva Pamela Anderson will find video files with Pamela Anderson

etc, etc, etc