Courtney,
Looking at the infobase, it looks like this is the error given for older releases trying to install.
What version are you using?
I thought this was above ESD#4.
Note says another customer used:
PCCLIENT1570100_0-20011197.ZIP
EBF 21162: 15.7 SP100 - PC Client
This can be searched for in the download center you were already at.
There is a search for downloads on the right bar.
I do not have a Windows 8 machine to test this.
Apologies for the previous step not working.
Hopefully this will help.
Regards,
Ryan