Hi Luis thx for the reply_:
i am using win 7 64 bit.
I downloaded the trial from your site as i only have bought the soft download. Then activated it in the normal way.Where is this “extra content” folder you talk about because i cannot find it.I have looked in the main folder.
When i open a project it says"The plugin"HALionSonic SE could not be found for instrument track “?”
And when i open the edit instrument it just comes up with ansplash screen with “no parameters available”" written on it also when i enlarge the window there is nothing at all inside it. Can i send screen shots? 
Also,clicking on the vst below All midi inputs( on the left of the screen) says !!! Halion Sonic SE !!! and clicking on that it says missing plugins. So it seems like a corrupt download to me .Thx
Giles Edmunds