Can't Unzip Scarbee Funk Guitarist (WIN 7)

Hi, I downloaded the Scarbee Funk Guitarist and seemingly it was successful in that I have 2 very large compressed files (each has about 3.6gb of data in). When I try and unzip, I get an error message and can't decompress. I'd try and download again but my link has expired.

I've already sent a mail to NI Tech Support but haven't had a response yet, so trying to get a headstart...can anyone help?

 

I have the 64 bit version of Windows 7 also & I cannot unzip my files either.

Here's what I did,I opted for the download version and after it was completed using AlZip,I extracted the Set Up Wizard & ran that.It took about 20 minutes to install,so I assumed that all of the sample data was extracted as well.
I then ran my DAW & when I tried to load the sample data,I received an error message saying that it failed & that the error was unknown.I then went back to my download folder & extract all of the sample data,which is separated into two parts.
However,this rendered no change or results whatsoever.
I suppose it's pertinent to mention that during the set up process,I opted for the default settings with regard to the destination folder.

As it turns out,I in fact,did not decompress anything,so therein lies the problem,I think?
Perhaps it's a issue with AlZip?