steering wheel help

hey, wassup everyone.
i bought an aftermarket steering wheel at the japanese version of pepboys/autozone/etc. and a wheel hub adapter. however, the hub adapter is for the 1992 180sx non super hicas. i'm worried cuz i read this one steering wheel installation thing saying that the s13 hub should have tabs on it (??) and the one i bought doesn't. any guesses on whether this will fit my '92 240sx or not?
even better, does anyone know where i can get a picture of what the '92 240sx hub adapter should look like (made by momo, sparco, etc.)?

http://www.pdm-racing.com/products/imag/sparco_hub.jpg

thats off the PDM website on aftermarket wheels for the 240sx, don't know if its a generic picture or what though.... maybe it will help

k, i saw that pic and the one i have kinda looks like that.
what confused me was at the store they had like 6 different adapters for just the 180sx. did the zenki and the kouki models have different steering systems? wonder if it's in the faq....