Here we are.....
http://www.worldphotographyforum.com...?t=1852&page=2
Take a look at photos in post 13. Shows my umbrella with outer on then off (shoot through) then I attach the outer the wrong way around to create a sort of softbox to catch lost light and bounce it back toward the subject.
I recommend an umbrella over a Lastolite as the Lastolite is more expensive and I use umbrella much more, except for shots where a catch light in important.
Don't forget a stand although an unwanted wibbley wobbley tripod will suffice and angle-able flash bracket, mine were from Calumet and don't have part numbers.