instead of seamless transition 4.6 I downloaded 3.3 is this correct. any ideas?

could envato have sent me the wrong link? instead of handy seamless transition 4.6 I got 3.3 besides that there no link or installer. I bought the Bic pack with 1200 transitions for $48 there’s just a folder HST… that I have to copy to the adobe extension folder. I work on an MacBook Pro 2018 and have the same problem on windows. as well

thanks in advance guys

Have you tried contacting the author?