I use a 17 mm offset box wrench for the drain plug, assuming its the same plug that is on my 08. To get the oil filter off, I use a plastic socket type that fits over the head of the filter and then take it off with a 3/8' drive ratchet.
I'm not sure what filter the 02 uses, but I might suggest getting the first one from your Honda dealer, then you can cross reference the part number with other filter manufacturers. You can take the first filter you buy to any auto parts store and find a filter wrench that will fit.
The procedure itself is pretty straight forward, but space is a little tight to get to the drain bolt and filter. I drive my bike up onto some pieces of 2X12 boards to get a couple of extra inches of clearance underneath.
Make sure you drain the oil while the bike is on its sidestand. When you fill the crankcase with new oil, you check the oil level with the bike standing upright. Check the level with the dipstick resting on the top of the fill hole, not screwed all the way in.
And whatever you do, don't ever start the engine until you have the dipstick screwed all the way in!