Looking for information and/or how to connect the RF433Mhz module (WL101-341/WL102-341)
You're right not to just go ahead and wire things up. There's a couple of nuances that you need to take into account.
Transmitter

Ignore the EN pin - that does nothing on that module
The transmitter is 1 3.3V device. You need to power it from the 3.3V pin and use logic level (5V -&gt; 3.3V) translation on the Data pin




simulate this circuit &ndash; Schematic created using CircuitLab
Receiver
The receiver is much simpler as it is a 5V device:



simulate this circuit
On the Arduino it shouldn't matter what IO pin you use, the Radiohead library should work fine with any of them.  These modules are pretty dumb - you raise DAT high on the TX and DO on the RX goes HIGH. Very simple.