Here's the dashboard updated in real-time if this sort of thing fascinates you (as it fascinates me!)
http://op-webtools.web.cern.ch/op-webtools/vistar/vistars.ph...
http://op-webtools.web.cern.ch/op-webtools/vistar/vistars.ph...
all the changing numbers are actually dynamically generated PNG's...
Yes: there's a link called "Doc" on the bottom of the page. This is the one for LHC Page 1, which is the most important display: http://op-webtools.web.cern.ch/op-webtools/vistar/Doc/LHC1.p...
No: well, you may only understand it if you have some background knowledge in some particle physics terms.