Sorry but this statement is not correct. We surely support Liquid 7.x. and we have really some well experienced technicians working with Liquid for years now.
Look here to get in contact with us:
http://avid.custkb.com/avid/app/selfservice/search.jsp?DocId=213043&Hilite=liquid+7.x+support
If you are not satisfied with our help, drop me a mail with the incident number.