Does anyone know how to decrypt AOL referrer URLs for encoded AOL Search sites?

examples below:
1) search for 'purple pony' on aol.com
http://search.aol.com/aolcom/search?encquery=ab7f45f53b309a585d7456beccfa6282&invocationType=aolcomsearch&ie=UTF-8

2) search for 'purple pony' on aolsearch.com
http://search.aol.com/aolcom/search?invocationType=topsearchbox.webhome&query=purple+pony

A similar thread was posted in 2003, but no one has been able to identify a proper solution:
http://www.webmasterworld.com/forum16/968.htm

Thanks in advance for your insight!