The potential problem I needed to clarify was because the writeup said that upgrading will replace the WE7 license with WE8. I was afraid I would lose the ability to use WE7 in Snow Leopard if WE8 only worked in Mountain Lion.
I have since done the grace period upgrade which did replace my WE7 license on my USB e-licensor. WE7 is no longer listed on that stick, and WE8 does not appear in the Soft e-licensor list. So apparently it did go on my USB and I have lost WE7 on the USB forever. I don’t know why it didn’t install in the Soft e-licensor. I was hoping WE7 would stay on the stick and WE8 would go to the e-licensor.
Luckily though (for now anyway), my WE7 is still useable in Snow Leopard even though the WE7 license has been replaced with version 8. I did launch version 8 in Snow Leopard and it does work, and I will say it is actually speedier in Snow than ML. (I got a lot of beach balls when running it under Mountain Lion). I just hope that if one day I run version 8 in 10.6.8 then go back to version 7, that 7 will still work with the license because it seems faster on my computer than 8. I don’t want one to become voided out by the other.