[unresolved] (manually imported) Sub category images not importing at all - Urgent

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Help i am stuck, and this is rather urgent.

Everything is set to go live with the website!
But i cant finish the project because of the blasted sub category images!

They are simply not importing!?

Is it something i am doing?

attached is my categories import file.
can see that the links to images work?
EG: http://.com.au/img/products/500×500/4OS.jpg

however when i import all the sub-categories display this in the source code,
/img/c/en-default-medium.jpg

Default!?!?

why?

the categories import fine otherwise...