I walked myself through the process again to get it all settled in my head.
In Bridge, when you click on any file, you'll see a menu pop down on the left that's called "IPTC Core" -- where you can edit the meta data. I entered in a bunch of my info here, but you can also just skip to the next step.
At the top, select
Tools > Create Metadata Template... and you will have the option to fill in all that same information (it will automatically fill in whatever you've already done if that file is still selected).
I created one of these and named it Commercial Use, and another for Personal Use, adjusting the meta data accordingly.
To add the template to a file or set of files, select all the ones you want to fill in, then right click on any one of them and select "File Info..." from the drop-down menu.
At the bottom of the screen that pops up, there should now be a little drop down next to the OK and Cancel buttons, where you can select the name of your template. When the confirmation window pops up, select the top radio button (or whichever one applies) and click OK.
Note: If you have a lot of files selected, be sure to wait a few moments before navigating to the other files; Bridge doesn't tell you when it's done. You'll know it's finished when, with all of those files selected, the metadata showing on the left is filled in properly. If it says "Multiple Values," it means one or many of your files haven't got the updated metadata yet.
I hope that helps and wasn't too wordy/confusing!!
