Hi Albert!
In case you missed it, here it is again.
http://www.g4ifb.com/html/lotw.html
I noticed on another page an instruction that required you scan an envelope
addressed to you at your address as part of proving your identity for
setting up your certificate, which isn't mentioned on this page, since it is
aimed at non-us audiences, but for the level of detail, this looks better to
me.
73,
Dave