Here is the BVH file I used and here is the Biped file. If you're feeling too lazy to remove the bones from the Biped file here is a Biped file with the bones removed. The BVH file is a free file offered by trueBones.com  (registration required) but thousands more BVH files are available for free download as indicated on the previous page. Here is a truebones free BVH file of someone climbing a rope. The advantage of truebones files over the Carnegie Mellon files is that they are less complex and may better match the skins (bodies) that you are likely to find or to make.