ok, i have tried to contact the guy that built it but as yet no reply, but its only been a day and hes on a british forum that doesnt get visited that often so give it time.
i may yet find the magazine that i saw it in( yeah, right, in that mess?!)..

from what i remember, he used a normal sized adult umbrella and a small profile fuselage with a fin and rudder (large rudder) at the back as normal, no tailplane/elevator.

the motor i believ would have been mounted with a little upthrust and this gave power for forward flight and the elevator controlat the same time.

(power up for climb, mid throttle for cruise, idle for descent, you know what i mean.)

the umbrella had sort of an airfoil ( think of an umbrella cross section, its a heavily undercambered skin right, not efficient , not pretty but an airfoil nontheless.

i remember that there had to be a hole cut in the top middle of the umbrella skin as there was too mush 'lift' being created, after this mod i believe it flew well, ill draw up a diagram from memory, bear with me.....