I know this forum is for Script Requests and please don't take my reply personally ... but people who post in this forum really need to understand what they are asking for before they submit their request.
What you are asking for is not practical. It's sort of like asking for an engine for an automotive ... well - you sort of need to know if your dealing with a motorcycle or a car etc... and then you need to know the make and model before anyone can even recommend an engine.....
In your case - one would need to know what kind of database you are running (mysql, oracle, sybase etc.) ... what kind of script are you looking for (PHP, asp, perl etc.). ... is the site running on linux or NT?
What forum are you running?
Aside from that - if you got passed all of the above questions - it's very possible that no generic script will work with your database - unless if you happen to be using a commercial or popular product... then you should be asking the person or site where you got the forum from if they know of any generic scripts out there...
Generally speaking - scripts (free or not) are great - but when you want to start integrating different scripts together (especially from different authors) it gets very complicated -- it's sort of like having an awsome tool - such as a chainsaw which can cut down a forest .. but now you are asking for an add-on so you can use it to cut your lawn... it's not very practical... sorry for the analogy but a lot of people out there just don't get it... your probably best off paying someone to design what your looking for - or search for a new forum which offers exactly what you are looking for.
http://buildacom.com