Can you put an Orange Samsung SIM into a Blackberry Bold 9700?

is orange the cell phone service company? if blackberry is unlocked or from the same cell phone company you should have no problem

As long as the Blackberry is either unlocked or compatible with Orange, it should accept the sim no bother!

Before put your orange sim card,Make sure your Blackberry Bold 9700 mobile is unlocked.
If it's locked means,you will need to unlock your phone.
For unlocking you can approach your service provider or else try to buy an unlocking service from any one of the online unlocking service provider like TheUnlockArena.com Here you can unlock your phone at low cost.