hey guys, thanks for the feedback and comments... i figured out why this is happening. at last... instead of doing the method R@nSiD said which was the right way and which was this,

Select the Poly Cube
Right Click and select Faces (to go into Component mode)
Click on the little square of the face you want to extrude
Choose Edit Polygons > Extrude Face Click Apply
Use the Manipulator to pull out the face to where you want it.
Right Click On the object and choose Object (to go to Object/Standard Mode)

i did this method which was stupid of me :headbang: and explains and anwsers neostrider's and erictacti's question about why there was more faces. This was my way,

Select the Poly Cube
Extrude the cube.
Select the face which needed to be extruded.
Use the manipulator to pull out the face to where i wanted it to be.
Hit f8 twice to get out of component mode.

i cant believe i was soo silly to extrude the whole cube lol...
well my mistake guys, sorry for wasting your time ...

thanks again to enhzflep, R@nSiD, Neostrider and erictacti.
(erictacti: Hope you can get this worked out!, WOO worked it out)

cheers guys, marlon ...