Some scripts are free and some scripts cost money.
The main difference is that free scripts usually dont take that long to develop, and there is no guarantee that the script will be improved. Scripts you pay for, does take longer time to develop and there is also a guarantee that the script will be improved constantly. Although Bundleboy CGI offer free limited support for all scripts, customers needing support for a script they paid for, will recieve greater attention. We also pay greater attention to customer input for these scripts. Registration does not change anything in the rights or copyright claims etc regarding the script.