If you open up the page in a HTML editor (or view the source code by using CTRL-U on the page), it should be the very first line. It's definitely not a dollmaker script issue, since I use it for my dollmaker and it works fine; it might have something to do with the layout you're using.
I copied the code of your page here
for testing purposes, so you can see how it works without the doctype declaration.
I'm afraid I don't know any other dollmaker scripts though.