There are 2 meshes you can use. One is very high poly, so be aware, use it only in case your computer can handle it
If you are not sure, just use the reduced one. To use the highpoly one, unpack the file "www.coolsims.net_fhair50_HQMESH.rar"
and replace the mesh (file "www.coolsims.net_fhair50_mesh.package"). If you want to use the reduced one, just delete the file
"www.coolsims.net_fhair50_HQMESH.rar". Any questions ask me at www.coolsims.net :)