does anyone else have trouble searching for part numbers at fordpartsonline.com?

i can find the newer IAC, which i need (XS2Z9F715BB), but i can't find the gasket nor the tube assembly which is listed in the TSB, and the FAQ

BTW, the FAQ lists the IAC as XS2Z9F715BA which can not be found by any of the online parts dBs i've tried. the other parts it lists (the tube assembly and the gasket) are:
F8RZ9H308AA - Air Valve Tube Ass'y
E83Z9F670A - Gasket

but i can't find them. any ideas?

thanks
-eric

for sale: E0 (98) Silver Frost SVT/Contour http://contour.org/carprofile/carprofile.cgi?a=display&uid=667 wanted: front SVT bumper mesh, 01/02 S4 avant, nogaro blue.