Yes. There are actually 3 separate programs; Website Tonight, GoDaddy Website Builder, and GoCentral. It all depends on when you purchased.
I believe we can rule out GoCentral as it would say that, but for some reason they decided to rename Website Tonight to Website Builder right before releasing a completely different one also called Website Builder.
To find out which you have launch the product...
If it says GoDaddy Website Builder at the top and has websitebuilder in the address bar you have v7.
If it says Website Builder v6.x.x at the top and has websitetonight in the address bar you have v6.