If you can export your contacts in a vcf format you can move that vcf file to the SD card on the D2 and import the contacts.
I don't have a BB, I said if because I don't know if you can do that or not.
I exported my vcf file from outlook and imported onto my D2.
My girlfriend has a BB for work. I asked her if it can export the contacts to vcf, she said she doesn't see an option to do it on the BB but it may be possible on the PC.
Can you sync your BB with outlook? If so you can then export the contacts and import them onto the Droid.