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ost_uid0="kingofhearts"]can't goku teleport anyways anyway at the beginning of dbz Gokus brother the one with long hair dodged one of gokus fireball and Goku and Piccolo said that he moved faster than than the speed of light and they are now way beyond him in power so i would guess they move faster than the speed of light.

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That's a false statement. Goku couldn't teleport until after he beat Furiza on Namek (he learned the Shunkan Idou from the Yardratt-jin).
Piccolo only said that Radditzu moved faster than the speed of light in the English version of the anime. As we all know, the English version sucks major ass. In the manga, Piccolo didnt' say anything, he was just shocked.
So, they can't move faster than the speed of light.
And I remember that a while ago, someone said that Gotenks can move faster than the speed of light because he circled the planet eight times in less than a second. I don't remember who you were, but that's also a false statement. He didn't do it in a sec, it took him 29 minutes, Piccolo says so himself. When Gotenks finished circling the earth and Piccolo tried to stop him from fighting Buu, he said he had less than a minute before the fusion wore off. And since we all know that the Fusion only lasts for 30 minutes, we can asume that it took Gotenks 29 minutes to circle the earth eight times