MS Outlook 2002 contacts question

Probably no different than most people, I have many contacts in Outlook. I sync my Windows Mobile device (Cingular 3125 cell phone) to it for contacts and calendar. I would like to be able to add options for telephone type (see image, circled in red). For instance, if my brother Joe has his cell number, home number and work number, I want also to be able to have his wife's cell and work number also. Maybe the additional option would read "Spouse cell", "Spouse work", "Wife cell", "Husband cell", etc. I considered adding them as an additional contact, but I'm not fond of that idea. I use the "Other" options as they are available, but sometimes I don't remember what the heck "Other" phone number I have for someone. Can the choices be expanded to include custom selections? And will it be compatible when sync to Windows Mobile?

Thanks Geeks!
Jason :dood

http://i145.photobucket.com/albums/r234/toehead410/outlook.jpg