You can transfer your old projects to a new computer by zipping then uploading them to some place like mediafire. If you buy Cubase Pro 8.5, you get a license that also works with Cubase SX 3, the last version that could import old Cubase VST project files and convert them to the newer .cpr format used by modern versions of Cubase.
Be prepared to be blown away by nearly 20 years of massive improvements. Of course you’ll feel very confused at first, but after a few weeks of use you’ll love Cubase Pro. Cubase VST feels like a crappy toy in comparison.