Custom Searches Delivered by RSS code

Looking for a Custom [login to view URL] Searches Delivered by RSS code. Something like rssauction.com. but i only need the "keyword or item number" Value. This is wat i want: Visitor fill in a custom keyword in the search box on my site. The code generate a rss feed containing items with his keyword. Before every rss link i want my [login to view URL] affiliate link. The rss most look something like this. item title [login to view URL]://[login to view URL];Item=itemnumber price , bids, time left Most work with all characters and currencies: EURO,GBP,USD etc