The error says that files have not been uploaded correctly. So you should unzip the zip file in your local pc, and upload /wpforo/ folder to /wp-content/plugins/ directory. Make sure you've not duplicated /wpforo/ folder in the /wpforo/ folder.
Before uploading it, make sure the current installed one is deactivated and deleted.
ok, ill give that a shot, thanks for your help man
i have done all this and it still isnt working mate, i have no idea what to do, my site is broken again....
I unzipped the files and installed the folder with ftp, after deactivating and deleting the current version of 2.0
It boke the site again and i am 100% sure i followed the instructions exactly.... I have deleted the 2.0.9.2 version and re installed the 2.0.9 version and the site is back.
Please let me know what I should do next. This is stressful, but at least everything is still the and working fine