Well my first advice would be don't spend any money on V6 or V7 just yet as they do not work like V4 did/does.  Before I get jumped on by the usual crowd, I am not saying do not use Genesis, it is up to you, I am just suggesting you check out the implications before you start spending money.

Genesis 1 and 2 will work in Poser using an extra little program called DSON.  I will leave it to others who have worked with it extensively to explain how to set it up.  At this point in time Genesis 3 does not work in Poser and V7 uses Genesis 3.  The other news is that V4 still works and there is a weight mapped version that you can use in Poser 2014.  If you have not come across weight mapping it is used to provide better bending of a figure.  Search for WMV4 at RuntimeDNA (RDNA) if you are interested.

For tutorials, there is a wealth of them to help but you could start with the ones here at Rendo that are free and broken down into nice manageable chunks.  You will find them under - tutorials - Premium tutorials.

I am not sure why your Poser 6 scenes do not load, what happens when you try to load them?  What I do know is if you can get them to load they will not look the same in Poser 2014.  The lighting and materials have changed and some of the material tricks used to make things look better in Poser 6 do not work and are not needed in Poser 2014.

I am sure you will soon be inundated with help so i have kept is short.

Welcome to the new world.  I hope you have fun.

 

 

I use Poser 13 on Windows 11 - For Scene set up I use a Geekcom A5 -  Ryzen 9 5900HX, with 64 gig ram and 3 TB  storage, mini PC with final rendering done on normal sized desktop using an AMD Ryzen Threadipper 1950X CPU, Corsair Hydro H100i CPU cooler, 3XS EVGA GTX 1080i SC with 11g Ram, 4 X 16gig Corsair DDR4 Ram and a Corsair RM 100 PSU .   The desktop is in a remote location with rendering done via Queue Manager which gives me a clearer desktop and quieter computer room.