I personally don't know, but I would suggest just waiting a few days and trying again.  You'll find another auction. 

You should also try calling some local UK Mac shops.  They are bound to have old, never been used, iBook parts still in storage.  I'd bet they are looking to get rid of it if they still do. 
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MacBook 2GHz Intel Core 2 Duo w/ 2GB DDR2 RAM & 120GB SATA 5400RPM HDD
Canon Rebel XTI
Google Cr-48 Beta Laptop