Oil filler neck HELP!

[Paul-Tll]

OK ive got the oil filler neck off now (see my wanted ad) but not sure what should be there ,i.e between the engine plate and neck?
I had half a crushed \'O\' ring fall out but should there be an Oval two hole gasket as well.Then I need the bits ASAP so i can get everything back together.
Cheers Guys :god  
Paul..

[grinder]

the O ring should be easy to replace - just bob into your local plumbing place - mine was about 30p i think

the gasket.. humm that could be a mazda only part..thats if there should be one - i can have a look on the EPC tomorrow for you