FYI - Xsan 1.4.2 fixes acfsMounter script
Unfortunately they don't include the automount.plist example file so here is the code. Just replace the volume-name with your own.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>volume-name</key>
<dict>
<key>AutoMount</key>
<string>rw</string>
<key>MountOptions</key>
<dict/>
</dict>
</dict>
</plist>