The order is correct (headers, head pipe, cat, muffler, tailpipe) - but,
the link you've provided for the front pipe is actually for the tailpipe. This should be the head pipe for the 95 2.5L http://www.quadratec.com/products/51403_14.htm
You are correct in surmising that a cat-back system does not include the cat.
I recently replaced my cat and cat-back exhaust. I went with a Magnaflow cat and an OEM style cat-back from Walker Exhaust (alias - Dynomax in the 4WheelParts catalog). The kit has the QuietFlow SS muffler which is mellow in tone, just a tad deeper than stock. This is probably the equivalent for your 2.5L Dynomax kit
. Probably performs just a little better than stock. Inexpensive too.