I would like to design a D-Latch for use in a circuit, but I only have
inverters and tri-state buffers to use.  I would like to have two
outputs on the D-Latch (one Q and one Q-bar (inverted)).  Please
provide a diagram showing how the inverters and tri-state buffers are
connected to make a D-Latch.  Thanks!

You can build a dlatch out of four NAND gates.  
See this website if you are not sure..
http://www.play-hookey.com/digital/d_nand_latch.html

A tri-state buffer with a pull down resistor, functions like an AND
gate.  you could that that and run it through your inverter to make a
NAND gate.  Then use four sets of those for the four required gates in
your d-latch.

Howerver, you can simplify the logic.   If have a pull up resistor,
you have a NAND with 1 input inverted.   The inverted input is the one
going into the buffer, and the enable line for the tri-sate is the
non-inverting input.
- The top left NAND can simply be an AND (tri-state buffer with pull down)
- the bottom left can be a NAND with inverted input (tri-state buffer
with pull up), run output of top left AND into inverting input
- top right can be a NAND with inverted input(tri-state buffer with
pull up), run output of top left AND into inverting input.
- bottom right then needs to be an AND (tri-state buffer with pull
down) and add   an inverter to the output to make a NAND.

So you only need four tri-state buffers and one inverter.