please help noob with new tripod
 

I just received the sunpak ultra pro 777 that I ordered from bhphotovideo.com...listed here: http://www.bhphotovideo.com/bnh/cont...ughType=search

And it has a geared center column with a screw at the bottom to move the head to for low angle shots...but I cannot figure out how to get the head off of the top??? and it is not in the instructions...and bhphotovideo.com's support said they would help...but so far I have been told it is a 2 piece column...which it is not, and that it has a reversible column...which it isnt...

all I need is someone that knows how I go about getting this head loose so it can be put on the bottom screw... Thanks in advance for any help in figuring this out.

I am planning on buying a new dslr next month, but if their support just fires out random answers like this...I think ill get it elsewhere.