Ok so I wanted to post the solution because I know from experience that it is VERY FRUSTRATING to see so many posts with the same problem you have that all just say a support ticket was created, and then no one says what the fix was. So although the solution solved it, but then created a whole separate issue in my case, I wanted to at least post this for others.
So this worked to get me past the error I was getting, BUT after uploading the files to the server and then running the install, now anytime I go to the admin, or any page that has to do with the cms, I get a completely blank page. I have even tried running the install again, but it's all blank too. So I am once again waiting to get an answer to fix that in my ticket, but I figured if someone wanted to try this solution to see if it works for you, then at least you'd have a little hope.
Now, I am not 100% certain that the file they provided me to replace the old one is not specifically for me, but I have looked through it and don't see anything that would leave me to believe it wouldn't work for everyone.
I'm a little confused as to why they don't offer this file for everyone as a sticky thread or something so that everyone can download it and not have to wait for a week to get this working. This is obviously a glitch in the program, not caused by something any of us have done wrong, so this is definitely the straw that broke the proverbial camels back for me, I won't be purchasing any additional WebAssist products in the future.
Anyways, these are the instructions that I followed for the fix:
Please download the attached WAPCMS_CreateContent.js file and replace it with your local file in the following location:
C:\Users\<Your UserName>\AppData\Roaming\Adobe\Dreamweaver CS5\en_US\Configuration\Commands
Make sure to have Dreamweaver closed and delete the WinFileCache before restarting.
Of course he didn't specify what WinFileCache was or where it was located, so I had to research that to know what to do with that part and it is:
First, to show hidden files:
Hidden files and folders
Select show hidden files and folders
After that is done, then navigate to C:\Users\<Your UserName>\AppData\Roaming\Adobe\Dreamweaver CS5\en_US\Configuration and delete the WinFileCache file, which starts with WinFileCache and then some numbers, then .dat.
Now like I said, after applying this solution, I was able to get past the error that everyone is getting, but now all of the pages I try to access for the cms on the site are blank. I was able to run the install, then after the install completion, all pages are blank. I wanted to let everyone know that, so in case you run into the same issue, then you will not think it is just you.
So we'll see if they help me with that.