Un checking the box for the downgrade of BBM only unistall BBM from the device and I was not able to install BBM 5.0 onto my device upon first try. I am currently installing BBM 4.7 back onto my device. After this I will add the java back overtop of the 4.7 BBM by using DM to find the .alx extension.
I'll report back with my findings
Edit: 4.7 installed back onto device correctly. Now to install the .alx extension of BBM 5.0 over BBM 4.7