just wondering if anyone has some concave style wheel nuts as ive changed rims (the old ones where the flat style) and in need of some

I found a decent set on ebay fairly cheap. The ones you are looking for is referred to as a "bulge" type.

i found 4 x packets of four brand new datsun wheel nuts up the back of the shop at work, with the $2 price tags still on them.!!!! i may have my old set laying around somewhere, ill have a look throughout the course of the day, and if i have them, and your still out of luck, you can have them for whatever it costs to send em to ya.