When buying rotors for a 95 Bronco 4X4 should the rotors be seperate from the hub or should they be attached as one piece? Im getting mixed info from part stores.

The reason you're getting mixed info from parts stores is because it comes both ways.
Look at the following to determine which one you have, 4 wheel disc brakes (floating front rotors) or rear drum brake model (except 4 wheel disc brakes):
Brake Disc (Rotor) REMOVAL & INSTALLATION Except F-Super Duty with 4-Wheel Disc Brakes Fig. 1: Secure the caliper so there is no tension on the brake hose

1. Jack up the front of the truck and support it with jackstands. Remove the front wheel.
2. Remove the caliper assembly and support it on the frame with a piece of wire (or something equally secure) without disconnecting the brake fluid hose.
3. Remove the hub and rotor assembly.
4. Install the rotor in the reverse order of removal, and adjust the wheel bearing as outlined in Section 1.

You can get them both ways, if hub's are good, I would just get the rotor's by them self, to install the rotor, you would have to knock out the stud's from the rotor, to install new one, the stud's is what holds the brake rotor to the hub assembly, that's not that bad of a job to do, also much cheaper for just the rotor's by them self, Napa part number 4886438, and cost about $35.00 each, hope this was very helpful.