what Version do i have

Depending on the hpw and why you got this message, you may already have a new enough version. That message is typically associated with people trying to open a pdf form in a browser (like Chrome) that doesn't use the Adobe Reader plug-in. And even more specifically, the pdf is probably a form. If this sounds familiar, try right-clicking the link to the pdf, choose to save it to your computer. Open Reader then use File>Open to open the pdf file.

Open Reader and go to Help - About Adobe Reader. It's highly unlikely that you have a version lower than 8, though.

Where does you get this message?