pm me your email address and i'll send a manual. Should tell you how to replace it.
Mow Joe is right: you are missing the part that bolts to the bock right where your governor lever is. I bet you can order one from one of the parts suppliers. Try one of the sponsor links at the top of the page, or Jack's Small Engines or PSEP.biz.No one can tell you how to hook up the throttle cable. It hooks to the sub-assembly that's not even there. There should be an assembly bolted over the governor arm that the throttle cable, governor spring, choke link, and kill wire all attach to. You pretty much need another engine to copy off of. I don't think anyone will be able to "tell" you how to hook everything up. Even parts breakdowns aren't much help in this case.