Cubase upgrading

i got cubase5 bundle with bass pedal it’s work with my old win 7 32 bit and i got voucher to upgrade to cubase 12 and i changed to win 10 64 bit the problems is
1.old cubase 5 can import only picture track from video file no sound track
2.cubase 12 can’t generate chord in chord track
it is possible to make cubase 5 work perfectly on win 10 64 bit and i guess the upgrading of cubase 5 to 12 is still 34 bit os how can i check and slove this problems