Windows 10 Home Update and Filter Forge 6.0

I have just changed my OS from Windows 7 Home to Windows 10 Home. I own a Licensed version of Filter Forge 6.0 and have never updated further. Filter forge 5.0 is currently running on my computer.

How am I to go from 5.0 to 6.0? When your window popup goes directly to 7.0 beta then to buying Filter Forge 8.0? I do not wish to buy a higher version as I have been purchasing since Filter Forge was was 1.0? I have patiently payed each annual subscription to upgrade to the next version. Now you want way too much for the full version? I cannot see putting anymore into your program?

Thankyou,
Adumelial

Thanks so much Rachel! SUCCESS!

Saving the link as I had a OLD Firefox personal bookmarks installed on my browser.