[Kosmos]

Drop down boxes and any type of list box starts with SelectedItemIndex 0 being the first choice.. and so on..

-1 for deselect anything.

I would really have to take a look at the files to give you better help, and I'm at work at the moment.

By the way that is a great idea and implementation of a mod for yourslef. I would try and think about ways you can make it useful for a larger crowd.
Perhaps a parser of text files, or even a guide on what values to change in the XML for your searches.

I've not played with the market window much.

UI builder can really hose things up when you run files in it.
I agree with lafs. First thing to do is check and make sure UI Builder hasn't created duplicates, or made controls out of all your scrips.
I loves to distribute those things in the file if you missed a tag someplace.