PHPLD script modification

I need a link page script with the following features: 1) The possibility to paste 1 to 30 links that will be automaically added to the link page... example below: a href="http://www.chromeball.com/" title="Chrome Ball - Honlapkészítés" target="_blank">Chrome Ball - Honlapkészítés</a><br> Free flash animations for your website. Directory of the net. You can add your link to our directory. Weblapkészítés honlapkészítés arculattervezés multimédiás cd. <br><em>URL: [login to view URL] - Added: 12.02.2006</em><br><br> <a href="http://www.acnecircle.com/" title="Acne" target="_blank">Acne</a><br> Acne treatments and acne products from acne circle. <br><em>URL: [login to view URL] - Added: 12.02.2006</em><br><br> So, when I'll add this above 2 links, they will be added to the last link page. the link page will have no more than 30 links on it, then it will start on a new one... 2) The script will have a spider that automatically crawl the sites i'm linking to and remove all the sites that are not linking back to the site i specify. The spider will crawl entirely the sites i'm linking to looking for my link, meaning the spider will go throught all the links of the sites looking for a link pointing to my site. If a link pointing to my site is not found, the link will be automaticly removed. Let me know your prices and how will you do it. Thanks