Trying to install R.Gen to Opencart

Hello, I just bought the R. Gen Opencart to use as a theme for my opencart store. I am using version 1.5.6 of opencart. I am having trouble getting it to work however. Using Ftp I but the "main" folder in the Theme folder under Public-html. At first I tried putting in the whole "main" folder. Then I tried putting in the "UPLOAD THESE FILES" folder. Then I tried but the full project folder in. Which folder should I put in and should I put it in theme? When I go to opencart I can see the folder under settings-store-theme, but when I choose it it does not work. It just goes to the default layout.

Could it have something to do with vgmod? when I go to vqmod manager it tells me the it is "does not appear to be generating vqcache files." I have tried reinstalling the vqmod manager and vqmod and when I do it says that vqmod is installed.

Do you guys have any advice to get it to work?

Normally nearly every template vendor is using a folder named 'upload'.
Some are using 'upload-this-folder' and so on.

One folder - does no matter which name - is the 'starting' folder.
Means, all folders and files WITHIN should be copied into the ROOT folder of your shop installation.

In the early days of OpenCart I have seen also only template files - templates were not so 'complicated' as some can be nowadays.
Folder and files of such templates may have as 'starting point' one folder called theme.
Then the folder of the shop to copy these folders and files is theme.

But in any case, if you look inside the package you should see a folder structure like you have already in the shop.