Vilters, 

Thank you for the responce. I was trying to use the exclude button, but your method seems much better. Thanks for those images, they were worth the thousand words.

I have followed your instructions and have used the brush tool to paint the W map in the area to be effected, ( deleted ?)  but I am puzzeled how you were able to remove the section of the highlighted  dress.  After painting the Weight Map so that it was hghlighted, all that I coud think of doing next was to go to the  FIT button. After the render it was hard to tell if the highlighted selection had any change at all.  What is it that I am doing wrong ?

Thanks,

Starboardtack