look about 4 threads down and theres a thread called wolfcamql 6.1

thats the new version of the stand alone viewer (it was renamed)

as for installing, just extract it wherever, and copy the contents of your quakelive /baseq3/ to the wolfcamQL's /baseq3/, then load it up with the .exe

theres a lot of info on random bugs/things in the wolfcamql 6.1 thread, so read (most) of it. im almost finished my installation/cvar/thingy walkthrough and imma post it on the QL forums, and maybe here. and itll be edited a lot if theres anything needs fixing ofc.

also in the OP of the wolfcamQL thread, i think it says teh cvar you need to force maps. since the namechanges, you can force maps, so if you want to play an old qzdm6 demo on the new map and dont want to copy all the old maps, you can force "qzdm6" to load "campgrounds"... or something, so that qzdm6 demos play on campgrounds. same works for all maps, but item movement/changes will obviously look weird.

get QLDT (QL Demo Tools), i find it easier and more comfortable than wolfcam

not as awesome though :(