Try this one : http://www.creativecrash.com/maya/downloads/scripts-plugins/modeling/c/search?search=xyShrinkWrap&x=19&y=20 if you can't get the other one to work.
http://www.hyperent.com/Hyp-Maxscripts.php Download, install, in the install options, uncheck every entry except the last one, it will add "conform wrap" under Tim's Scripts to your options under Customize UI in Max.
a little tip.. when i use it i only do chunks of verts at a time. so go into your edit poly and make a vert selection and then run the script on those verts only. this work much better than trying to do the whole mesh at once.
wow... lil thread necromancy going on... There are a few more options for this kind of stuff. It's amazing what 4 years will do. Stand Alone Apps: http://www.topogun.com/ I hear topogun is the bees knees and worth the asking price. http://www.3d-coat.com/retopology/ And 3D Coat has some pretty cool retopology features,…