Hey dude, try this link.
http://forum.earlybay.com/viewtopic.php?f=2&t=602" onclick="window.open(this.href);return false;
any probs and you could try Aaron or Johnny on here, they will go through it with you.
A crossover describes the 72 models which developed such things as bigger back lights and air intake vents (among other things) but still retained the low front indicators of the earlier models.
A 'crossover' between the early models and the later high front indicator models. There is a thread on here which goes into finer detail about the differences.
Hope that helps a little, and dont forget to post plenty of pics when you figure it out.