Ok first remember this...The B-52 does not like you. She is a hard bird to land, however there are a few things that might help. First the B-52 does not flare like most other planes, it lands pretty much flat. Try to add a bit of trim on approach, which BTW, should be a very long approach. As far as a place to land, go to just about any USAF base. I use Minot AFB (KMIB) for test flying my military heavies.
When you are on approach, start it at least 20 miles away and have you alt set below the glidescope.

Also nose around here: http://www.simviation.com/cgi-bin/yabb/YaBB.cgi?board=bonzie

He's the rather talented dude that built the beast!

Full trim up seemed to be the missing factor.  I landed it but it wasn't my prettiest effort.

Yes, it's like a flying bus or garbage truck.  Very big, heavy and unresponsive.

With a stall speed of 140 I kept it at 160.

I'm not sure what my descent rate was because I didn't trust AP.  -500 fps may be too much because the ac keeps nose down attitude.  I only landed once at 100 ft above runway alt a mile out and just let it drift down.  You don't want to try this unless you have plenty of room for approach.