I believe that guide is for those who have froyo and hboot 1.00 or 1.01. As you have 0.43 you need to use the rooting guide for 0.43.
As an important point for you at this stage do not update your hboot version if you want to get full s-off later. Hboot updates are usually included with higher/newer versions of stock rom so also probably not a good idea to update or even change your stock rom.
sent from my legend, currently using zeubea ics beta0
Update: 17th november 2013
Samsung G S4 stock BMG4 + root
with cf-auto root + philz recovery.
HTC Desire HD
(Hboot 2.00.0029 AND S-OFF)
SVHD V 2.1.0
Retired HTC Legend