CCIP's screenshot from the original link is still up:
I don't currently have it installed, as I'm playing with different mods right now. here is the .tga for the suspenders:
One thing you can do is download it, then look at the individual files; or install it with JSGME and see how it looks in action. My chief has the black trousers and vest, my 1WO is in uniform, my navigator wears the correspondent's white sweater and the POs all have randomized plaid shirts.
The white caps mod was a different one - I don't remember which; nor do I have it as only the captain wore a white hat.