hi, i have a HP-2RNB receiver and a Tekin G-10 ESC, which way should the wires from the ESC enter the Receiver, or which plug should i use? Many thanks.

An apparently unanswered old post? For the record almost all receivers, apart from old Sanwa/Airtronics, have the signal lead closest to the center of the RX, Positive (+) in the center and Negative (-) at the edge of the receiver. Should plug be reversed then no damage occurs to RX or Servo/ESC, as only negative and signal leads are exchanged, the units simply do not operate.
Servo - Wiring Diagrams = use with other brand RX.
More info sub Section "Glitches & Jitter in Receiver, Servo & ESC - causes and cures " under
"Radio Systems, Accessories, Alterations and FAQ." at:
Alan's Hobby, Model & RC FAQ Web Links

Regards
Alan T.