Make Add A Link Script

I am looking for a hard core Perl/CGI programmer to customize and make secure my add a link script. Another freelancer from this site originally designed it for me and left it in such a mess and dissary. Basically what I need done, is a few features added and security increased. Features include: disallow certain url's, html, or javascript and the add a link in reciprocal link text fields. Also i need it to keeo a flat file database of all the links and reciprocal links and email addresses. I also need part of the script designed to check reciprocal links and delete the ones where my link was taken down. This is a very simple project and hsould take no more than 2-3 days. The MOST i will pay is $50.00USD.