You can glue them on. My ex made his own arrows. There are some tutorials out there, online. There are some web blogs out there too on archery/broadheads/field points. An example is:
Broadheads and Field Points and
Board Message
If you have a sporting goods store that knows what is what in archery, try there. You can go through the Google links on field points also:
field points on arrows - Google Search
There are many magazines out there for the archer. Check your library or find out if your area has an archery club. The one we belonged to was quite active in education of new hunters/archers. Good luck to you.