Had to re-format my laptop and re-install CS3. When I did, Bridge does not show "Edit in Camera Raw" from the preview screen. I'll try deleting and re-installing Bridge, but does anyone have any suggestions? Adobe's site has ACR 5.5 but it is only for CS4.
When you double click on a RAW file in Bridge it opens ACR.
If it doesn't work, look at your preferences, make sure "Double-Click Edits Camera Raw Settings in Bridge" is checked.
Install in the correct folder, as Mr Mouse said. It's also a good idea to scan your hard drive for every copy of ACR and delete any old copies you find in other folders.