Sputniks...
1...I think I made the manual download from the website of WWW.samedaymusic.com which is where I bought mine.
2...The connectors on the Behringer are XLR type, but these can be used for single ended electrical interface (as well as for balanced). You can use XLR/RCA adapters if you want to use existing single ended RCA interconnects, or you can have single ended cables made with XLR terminations on the ends that go to the Behringer, and RCA terminations on the other end. www.a2zcables.com is a good source. I have single ended going in from my Rotel SS processor, and balanced going out about 25 feet to my power amps which are near the speakers.
3...You cannot connect a phono pickup directly into the Behringer (or any other equalizer for that matter). You need to connect it where the signal is at "line level" (about one volt) and this is between the preamp and the power amp. If you have an integrated amp the preamp and the power amp are all in one piece. Some integrated amps have "pre out" and "power in" connectors that are normally jumpered, and some have switch-selected "Tape Monitor" outputs and inputs.