I have bought a old SE K700i now the problem is when ever my friends with a 6600 or 6630 send me pics or anything i have to select yes dialog for every bluetooth message even after PAIRING the phone pls help my thum is gonna come off at this rate????

Try to change the visibility setting for ur phone. If it don't help then there's no way out for the problem mate. That's the standard procedure for SE phone. In fact for me i think it's better so we really know what files are being downloaded to our phone n that way we could prevent harmful content.