Thanks Jason, strange how it does that sometimes. I'll make a note of checking the positioning on the pages that have it however the SCAN program did not for example write any false orders, or register any false new users, create any weird products etc. so the validation code in those pages seem to be OK. Mind you most of them are behind security assist.
For the scrubbing code I placed it into many of the validation code and it doesn't look like its affected the performance. May I make an assumption that it does help in any way (sorry if this is a dumb question) and makes no difference, or makes it worse and I should remove it. I spent a little time last night adding the code. Before I go through it again I just want to make sure I really need to remove it ... if you know what I mean.