Can a lower court disregard the rules of the Calfornia Supreme Court on a Mandatory court ordered settlement conferance ?

We signed the settlement paper work. but the insurance company and the other litigants did not sign(the litigants' names were "signed" in by the defence attorney, as they were not present.(can an attorney "sign in" it's clients names as if they signed themselves???) The insurance company didn't sign the doc. ether.The rules of enforcement are clearly stated on the settlement paper!
We didn't get any paper work for a month after,by that time we discovered that our attorney with-held Major information. We then said No deal. Now both our attorney and the defence attorney want to cry foul and "force" us to take the deal by saying this court will rule that the contract is enforceable. We were also told that the judge would exclude all evidence and we would lose. HUMMM.....(fighting city hall)