Reed Snellenberger wrote in
:

I'd be interested in any pictures of the pad attachment process --
after they finish tipping the booster up, are there alignment/indexing
posts that make certain the pad fixtures are lined up? How many
hold-down posts, how big, etc. Something along the lines of the
pictures Kim Keller snapped of the shuttle's attachment hardware --
preferably without anyone getting fired this time, though...

The CBC appears to be attached to a square alignment frame
which may make the actual physical attachment to the launch
pad. The Heavy had a similar alignment frame, but was
rectangular (being composed of three attached frames?).

I think I could see (in other pictures) attachment points on the CBC
that connect to the frame in some way, but it appears there has to
be additional hardware to do so. I'd guess the holddown bolts
go there.

Propellant, gas and electricals all go in the CBC's side
through a couple of shrouded pad feeds, very like the Shuttle's.

--Damon