My Mac won't let me upload RAW files from my SD card bc it can't read it. I know I need ACR (adobe camera raw) but not sure where I find that? Did it come with my Photoshop Elements 10 CD or do I download it from somewhere? Thanks!!
ACR has little to do with getting your images into your computer; it's involved with opening your raw files (using development parameters you choose) into Photoshop to edit them, or to convert them to other formats.
Regarding Photoshop Elements integration with reading card images as part of your workflow, this isn't the best place to ask, as this forum is dedicated to the full version of Photoshop, which expects the user to control more of the low level operations himself/herself. It would be better to ask in the Photoshop Elements forum: