i see you have 09. go and find the yukonzoom products and download them with your cm. if its not the loads you are seeking then you might have to download the newer version of the 73 ft centerbeams. i beleive they are on the saxt website.
check the KUIDs to see if they start with a kuid2:xxxxxxxxxxxxxxx. there has been a revisionfor the centerbeams since yukonzoom released the excellent lumber loads