Tabbed by ear - Sounds fine to me.

Capo 2

Single strum through the verse.

                  Am
   Our love was lost
F                    C
   But now we've found it
                  Am
   Our love was lost
F                    C
   And hope was gone

                  Am
   Our love was lost
F                    C
   But now we've found it
                           Am
   And if you flash your heart
F              C
   I won't deny it

   I promise

Am F C (Strumming)
   I promise

That is basically it. It sounds like a 3 chord bash through most of it to me. 
Try it for yourselves.
If you find anything better feel free to correct me.