End of Stream when spawning any items with 1.5.1 tekkit

[Cowboy]

I keep getting a End of stream with every item from 1.5.1 tekkit. Im not sure if its my host or what if anyone knows how to fix it please help! Also my Not enought items mod tells me the id is not found

[Magister]

sounds like you have a id mismatch, but without logs it is hard to help