Is it, the Nikon MB-D80 Multi-Power Battery Pack. Can be use to nikon d5000?

Please help me.

Unfortunately no. This is the same issue with my 5100. You have to buy a third party grip - search Google for Nikon D5000 vertical grip and you'll find a lot. The one I bought does what I need it to do but feels a little "light" compared to the MD80 which I had with my D80 and LOVED.

You will not get the exposure lock button like the MD80 had. But the grip will cost around $30 so it's not that huge of a risk. You'll find lots of them when you search Google. The brand I have is the Zeikos which makes grips for all Nikon's. For some reason Nikon wants you to buy a much more expensive camera before they will provide a grip for it ($$$$). Bummer. But I have no complaints about the third party grip.