Hello,

For help with the cloth room, here is a tutorial from Dr. Geep  http://drgeep.com/p5/cr/cr.htm

Also, check out this page on cloth - lots of links and reading www.renderosity.com/mod/forumpro/showthread.php

In a way,  when you constrain part of the cloth,  you're "telling" THAT part of the cloth to "stay put" where it is and not to be effected by any dynamics.

good luck