Check these links -
http://code.google.com/apis/searchappliance/documentation/62/xml_reference.html#QuerySuggestionServicesuggestProtocol
http://groups.google.com/group/google-search-appliance/web/gsa-query-suggestions-on-a-custom-page
You should still be under support. Can't a google engineer fix that
for you by remote support? Send me an email and I can send it to you.
Cheers,
Michael Cizmar | MC+A
Google Enterprise Partner
http://www.mcplusa.com/blog/ | twitter: http://www.twitter.com/mcplusa