first of all hi

i have a few probs with my website and was wondering can any of you help

when i type in www.cathshandcrafts.com the little box at the bottom comes up title site something else instead of www.cathshandcrafts.com how do i change that

also on the top of my website over my website logo there is a black box with a warning sign in it what happened there

also when my customers go to put in there name for registering it says that there first name has to be seven letters can and how to i change this to a lower number

thanks
mags