Why are we answering posts here from another forum? Why not just ask those guys your question?
Answer: It's really a rather simple one (like most of your questions) - just make the button open the link to the template.xsn file on the ShP Server. OK, that'll be $0 and 0 cents. Free! You win. We are your slaves.... NOT!
RAM: please stop the onslaught of simple questions NOW. Please spend more of *YOUR* time doing research before just spamming the forum. Search the forum. If you can't find an answer after 30 minutes of searching, please post your question. We are here for people who have real issues with InfoPath and who are willing to take the time to do a little research. We are not here to help FREELOADERS like you do your work. That's for you to do. Please stop freeloading by a) spending more time doing the work on your own to search and investigate (30 minutes mandatory before posting), and b) helping others on this forum by answering their posts.
If we continue to get FREELOADED by you, we will remove your account. You have been warned.