I'm going to assume you were referring to the display replacement guide. The connector in step 15 is a 40 pin male connector, but there are many versions of the connector, so a macro-shot of it would be required to determine the manufacturer (by model number) and where to buy. A jumper (extension) for this may have to be homebrewed.
In step 16 that is a coaxial connector for the wifi antennas, extensions for these are actually easy to find. The name of the connector is the '''Hirose U.FL''' (or simply '''U.FL''').