Do the field names show up? In other words, do you see the name "Make" but there is no actual field beside it? Also, I noted that you have variable names for those fields - did you declare the variables in config.asp?
I'd download the Phone Directory Mod which adds several new fields to the members table, inc_profile.asp and register.asp and use that as a guide. One thing though if you add new fields to members table make sure you add them to members_pending too. http://www.snitzbitz.com/mods/details.asp?Version=All&mid=70