Try going to the PC Control Panel, Add or Remove Programs and delete BB DM, and the OS then reinstall them. If that doesn't work, delete them again and use a registry cleaner, such as CCleaner, to clean out the registry. I've had to do this in the past. ¡Buena suerte!
Re: Device drivers won't install, can't get desktop software to connect to Blackberry
I would suggest visiting http://www.blackberry.com. Search the site for the drivers for your device. You should be able to download them directly to your PC.
Have you attempted to remove the SD card from your device and using a card reader to insert directly into you PC? This will allow you to manage the files once it syncs with your PC. Locate the picture you want to move on your SD card and click, drag and drop the files where you want them saved on your PC. I hope this information helps.