There is no need to ask for permission, all models on Blend Swap are free for any use as long as you respect the CC License.

said all :]

Yes all you have to do is credit the creator of the model in your credit roll, visit Mutte's profile for more credit details :)

looks like a very cool model!

Amazing, thank you. You work is great.

@Mutte if ur there could you seperate the texture from the blend file?? i wanted to append the texture when i append it it does not show up so if u put it to a different folder i could put it to the character manually