Mount And Blade Green Colour Installing A Ceiling Fan. Removed Light Fixture, Only 2 Wires Coming From Hole! A Blue One And A White One.?

Installing a ceiling fan. Removed light fixture, only 2 wires coming from hole! A Blue one and a White one.? - mount and blade green colour

The fan is white, blue, black and green off.

Does this mean that I can not install a ceiling fan?

This is the fan I have:
http://cgi.ebay.com/Avion-30-Multi-color ...

I use to install a ceiling fan help tutorial, but now I'm confused.

Ceiling Fan Tutorial:
http://www.easy2diy.com/cm/easy/diy_ht_i ...

Do you have any advice?

Measures taken so far:
1. Removal Schedule
2. Join reinforced ceiling fan box, ceiling mount

I'm still on the fuse box, but I will not do it until you have an idea of what I get for the next step in my project.

Please help ... And please, I speak as ifI have 5 years, so you can 100% sure I understand what you mean.