While that is not ideal way to move your data from a BB to BB, it can be done.
While in the Addressbook, you can copy one contact at time back to the SIM card. Once all on the SIM card, click menu to SIM Phone Book, and copy ALL to the new BB.
The ideal manner would be to use the Switch Device Wizard, if all your contacts were in the BB Address Book.
Or sync your old BB to MS Outlook or an ASCII text file and the resync to load the new BB.
At least the Backup Restore function will work also.