I'm sure Jim has already kindly sorted this one out for you. But there is an alternative.
You can download the 30day free trial of photoshop or elements 6 so that you can open the file and rename it as a .jpeg file.
ps.. if you have problems saving it as a jpeg, it might be the file needs the layers flattening (if there are any) first.
I've also
just found that Irfanview will also open .psd files

This is FREE software which you can also use to resize photos.
www.irfanview.com Its good and easy to use.!
Jenny