You can use xml provision maker
http://forum.ppcgeeks.com/htc-touch-...omization.html
A note of caution though. It will not save passwords in the xml files that it creates and sometimes it creates a few graphics characters in the file right at the beginning. You will need to check the files and you can insert the lines for passwords and delete the garbage characters at the same time. Other than that it works fine and comes with 9 preconfigured files and a user editable one also.
Your other choice would be Makisu which does a good job of creating xml files for your email, wifi and exchange settings. You will have to search for that one as I can't remember where I found it but I am sure it's on ppc somewhere.