Mark U , Jul 19, 2008; 06:47 p.m.
If you are going to post a large image of the lenses
a) at least make it a sharp one so descriptions on lenses can be read
b) show the mount and/or the detailed description round the front of at least one lens
c) don't upload it with your posting - host it yourself elsewhere. Uploaded images should be resized to no more than 700 pixels wide, and ~100kb maximum.
You will need one or more M42 to EOS adaptors - these can be readily bought relatively cheaply via e.g. ebay. You should also read about using this kind of setup here:
I doubt it is worth trying to use the 2x converter because you will find focussing all but impossible and the image quality will likely be very poor.