Anyone with Por2 here, I need a big favor

[Benefactor]

I bought my copy from gamestation used section(save& return) for 3£.
Installed it nicely, but the game crashes after i start the exe, and i cant install any of the patches as it says it cant find the installation.
If you have Por2, id really appreciate some help.
heres a little tutorial:
Track Changes to the Windows Registry
basically you should get 2 textfiles, one before Por installation (version 1.0, unpatched) and another one after.
much thanks.