I helped a friend upgrade her BlackBerry 8310 to 4.5 last night.

I noticed she had a low amount of memory and figured out she had a lot of pictures stored on her device memory instead of on the SD Card.

I didn't see an option to select multiple pictures and then perform the move.

We ended up moving them one by one, but is there a quicker way to do this?

You could use the Roxio Media Manager if you have it installed to do this. I don't know if there's an easier way.