Kingdom Hearts Mickey's Keyblade from the Realm of Darkness?

Darn sever problems.....
Anyway, yes Mickey's Keyblade is from the dark realm. In order to close the DTD a keyblade from both realms are needed. For the most part this was never fully explained in the English version of KH1. Mickey's star seeker is a keyblade of the light realm so he made his way into the dark realm through one of the randomly appearing corridors of darkness in Traverse Town. Once there he ventured through the darkness and found the keyblade. How he found it and knew about it and the fact that two keyblades were needed is unknown at this point.

http://www.youtube.com/watch?v=XZADxNU4hFo

In this cut scene from KH1 final mix, Mickey talks to Riku's heart which was sent by Ansem the seeker of darkness behind the DTD. There Mickey make contact with Riku's heart and says the following....

As well as

Finally it was confirmed by the creator of the series in the Another reports. A collection of answers about many deep questions about the series. This was given along with the purchase of KH2 Final mix+
One question should clear everything up

Right all keyblades, light or dark, are the same. The only known time the types matter is when it comes down to closing the DTD.