Here is the Blackberry 8530 bluetooth file transfer procedure:

>>>You can only send media files that you added.
Before you begin: To perform this task with a paired Bluetooth® enabled device, you must turn on Bluetooth technology.>>>
KB03391-How to pair a BlackBerry smartphone with Bluetooth enabled devices

Send a media file
1.On the Home screen, click the Media icon.
2.Click a media type.
3.If necessary, click a category.
4.Highlight a media file.
5.Press the Menu key.
6.Perform one of the following actions:To send a picture file, click Send or Share. Click a message type.
To send an audio or video file, click the send option for a message type.

Receive a media file using Bluetooth technology
Before you begin:To perform this task, Bluetooth® technology must be turned on and your BlackBerry® device must be paired with a Bluetooth enabled device.
1.On the Home screen, click the Media icon.
2.Click a media type.
3.Press the Menu key.
4.Click Receive Using Bluetooth.
5.Send a media file from the paired Bluetooth enabled device.
6.If necessary, click Yes.
7.Click Save.

Resources
BlackBerry: Support