Database Submitter Script

Hi there, We have a database of members (over 300,000) which have registered to our site, some of them have opted in for special offers however we need a script that will submit there information to these special offers. The script wants to read the table 'users' in our mysql database and submit there information to a url. The script wants to first select which members it wants from the table either by typing in a box something and then it matching it with all records that have this in field 'referer' or by row numbers e.g. 1-10,000 etc. The script then wants to ask you for a url and the url enter parts of it will want things like field 'firstname' or any other field that might be in the users table. So on this page it wants to list all variables you can use in the url e.g. [FIRSTNAME], [LASTNAME] and then these be inserted in the url like: [login to view URL][FIRSTNAME]&lname=[LASTNAME] and it may use them all or it may use some. I will give you a copy of the database structruce on acceptance so you can replicate the database to test it. Thanks a lot. Matt