InfoPath Dev

I hope user use drop-down list field to choice a word templete and then system will open this word templete. does anybody can help me?   Thanks   

Thanks a lot.

 s42bm.   Thanks a lot, but can you let me know how to add code in SP Designer workflow . and my another question is when I republished , on MOSS, I can't open the form. system display "The form has been closed".   Thanks

 s42bm.   I have same problem, but I'm not use code, I used SP designer "update List Item" command, can you let me know how to change the properties when the form has been published. on where you can modify this parameter? my error message is "Event type : Error"; Description : error updateing at list ...