[T3] Wheel issues

[James Lingenfelter]

  I have a set of old Superior Volksmag "turtleback" wheels that have  
been sitting in my garage for years; I just put new tires on them and  
was planning on putting them on my '68 squareback. I was told I could  
NOT use the lug bolts from the original steels wheels, and that I  
needed to convert to studs and nuts with washers, which I have done.  
However, now I have absolutely no clue how to mount the wheel  
properly. The bolt holes in these wheels are flat around the edges,  
no concave shape or cupping. The studs are SO much smaller than the  
bolt holes, how in the world are you supposed to get the wheel  
properly centered on the studs????? I've put alloy wheels on these  
cars a million times, and it seems like I always used regular VW lug  
bolts, possibly longer than original. Now suddenly everyone is  
telling me that's "dangerous". Please help, my car is sitting in the  
driveway with no wheels, and I am totally clueless.
   Thanks,
   Jimmy