i just did the crankshaft seal on a 3vzfe motor (I think thats right, its a 95 Aussie model).
I had the hayes manual and was stuck for quite a while with the screwdriver in the ring gear explanation. I have an auto so dont know if it is different to a manual. But I couldnt find a ring gear or converter bolt anywhere near where the photo was indicating.
anyway I ended up pulling off a cover plate that covered part of the sump area. I couldnt remove it completely because of hte exhaust (it just dropped down on to the exhaust) but it was enough to locate a ring gear tooth with a screwdriver. after that it all went sort of smoothly. the crankshaft nut was dammmmmm tight though.