This problem is well brown. I've got fond memories of an hour or two working it out, so am a bit loathe to go into too much detail. But since you asked...
From that position match your right hand in next to your left, then use your left foot on the bottom arete as a brace to get out to the arete. I found the pale area an arms length above your chin a vital intermediate, enabling you to get your body out from underneath the prow and slap for the guppy. Then just lay one on for the top with t'left.
Despite its name being Michelog, any self respecting Heels 'n' Beef merchant should have this on their list.
