It's been a while since I did this but here's what I'd recommend and try to show graphically as best as I have documentation available.
There are two major ways of going from Terminal 1 (either Concourses B or C) to the Hilton.
The one you quoted is me following the Hilton signs - these take you on the confusing path from Concourse B, down two levels to the Pedestrian Tunnel Level. You'd then take the tunnel to under the Hilton and then come up to the Lobby Level of the Hilton. If there's a snowstorm or thunderstorm, this would be the better path to take. However, if you don't need to be under protection, I don't advise going this way.
The second path is to get to Concourse B and then exit the secured Terminal 1 areas to get down to the Lower Level and the Lower Level Roadway. You then simply walk almost directly East to the Hilton.
Here's flychicago.com's
map of Terminal 1 as a graphical image:
I've highlighted the Polaris Lounge in a green box, the moving walkway tunnel between B and C with a red arrow, the approximate vicinity where the Hilton signage is in Concourse B (yellow box + red arrow). This map indicates that you'll exit Terminal 1 on the Lower Level around doors 1G/1F/1E. From there, cross the roadway and walk to the middle of the Hilton - here's a view out of Google Maps with the path shown in a red dashes:
That's my best explanation trying to convey a 3D path using 2D graphics. Probably ORD flyers and others who frequent the Hilton O'Hare more often can provide additional detail.
David