King's Gambit, Allgaier Variation

Hey Folks,

This is a line I have been experimenting with lately since I saw a game of Morphy's in which he used this with great success.  Wikipedia and other sources as well call this a dubious opening, but it seems like something that could work in blitz games.  The downside is that there is very little analysis of general concepts in it.  On the of chance that anyone here plays it, or plays something like it, could you please give me some advice on how to continue?  Here's what I know so far.

I believe this would be a dangerous line in the hands of a player who knew what he/she was doing.  But I have tried this line against a computer with little success, and it always seems to get its king to a safe place behind its h-pawn and leave me a piece down with nowhere to go.  Any analysis would be apprecciated, as always.