VST missing | fx

Hello Steinberg bunch,

I have just upgraded to v8 from 7.5 on Windows 7
Some of the plug-ins seem missing.
I have two instances of AmpliTube: 2 and 3, they both are in correct VST catalogue and I can see them both in plug-in manager window but v2 has a message ‘missing’ altogether with few others present in other version of Cubase: ‘Natural Verb’, ‘Puncher’, ‘Stereo Echo’ and ‘Stereo Expander’
Could anyone help me restore them to working order pls
thanks
Dom

Solved myself. Just moved the plug-ins around the registered VST folders