is there a way to transfer all phone book entries from the curve to my sim card all at once? i only know how to do it manually, one by one and it's quit annoying considering i have quit a few entries to transfer.. is there a way to transfer all entries to the sim card at once?

No, there is not, sorry.

One by one is the way.

If you could detail your end need, however, there could be an easier route. If your end goal is just have your phone numbers on your SIM--have fun. :(

Nope but unless you're looking to transfer your SIM to another phone and use the SIM phonebook to transfer the phone numbers you really need to sync/transfer/backup contacts via a PC.

Keep in mind that the SIM phonebook only contains 1 name and 1 number per contact. Any other contact info (email, addresses, etc) will not be copied over.

The SIM phonebook support in the BB is really intended just for those migrating to the BB from a "regular" phone.