OK it's the one pictured. There are no parts available for that bow. You can still get custom made strings and cables for it. The arrows need a special nock that is similar to a nock used on a compound bow only much larger. They are difficult to find, but they are available. It will use a 2219 arrow with the special PSE nocks and you will need to measure from the trigger latch to the arrow rest, to get the proper length. The arrows take four vanes in a 4 fletch 75 degrees x 105 degrees pattern. The arrow rests seem to wear out and there are no replacement parts. Most guys use whatever means available to get a rest on them. I've seen some with whisker type rests on them.
I've shot a few of these. They are a piece of history and fun to shoot. (just don't ruin any arrows, they are $$$) The downside is that they are also very loud.