Yes idd, thanks. Often i find the best way to truly learn something is to build and release scripts and then get feedback from other developers.
Oh and thanks Wildhoney, i actualy managed to read through that site you mentioned in one of your earlier posts, I found it really interesting, a good resource for future problems I think.
I may acquire a copy of that book, it looks like a good read.

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mysql> SELECT * FROM `users` WHERE `users`.`clue` > 0;
Empty set (0.00 sec)