No the pointer is actually:
plBiped01_entity

At least thats what I see from looking at the plBiped01.wdl file.

Edit:
Code:

---

// set global player biped entity pointer to this object
	plBiped01_entity = me;

---

Thats the important line in the PlBiped01 action, as you can see it uses the entity pointer plBiped01_entity to refer to itself on a global level.