Help Pls!!!! extracting mbm out of the sis file

can anybody pls help me with my problem about my themes editor pls. it snot working i already have downloaded total commander for extracting out the mbm files in the sis file, and downloaded the siesview patch, but still when i try to load the mbm file in my theme editor it still says error loading theme. Will u pls help me int his matter thanx a lot in advance-- jigs