Right click to download
The Timmer files (ZIP)
The Timmer files (RAR)
Timmer files(with word list) (ZIP)
Timmer files(with word list) (RAR)

PC
Download Python software for Windows here.
After Python and Tcl/Tk are installed, you just double click on the timmer.py file and it should work from there. In the "wordlist:" box type in the path of the wordlist (C:\Documents and Settings\dude\My Documents\timmerize\words.txt for example).
Mac
Download MacPython. And Tcl/Tk.
Update!
And this fix.
I just know that once it's working properly, you open Terminal (Applications, Utilities, Terminal) and type 'python' followed by dragging timmer.py to the command line (unless you know its exact location...then type it in)
But seriously, I don't know anything. I just told sckot what I wanted/needed and he put it together.
Instructions...sort of
Choose the search type (begins with, ends with, contains, etc.) and push the "Add" button. Enter the parameters in the text fields below. To remove a search click the "X" button. To make the search "does not" contain/begin with/end with click the box to the left of the word "Not". When you are ready, press the Timmerize!/Search button and you'll have your results. Word.
e-mail me @ hommedeterre(at)gmail(dot)com for further instructions.