You are correct that the bulbs are 194 style.. You can replace them with whatever "wedge" based buld you'd like. you can also find Malibu outdoor low-voltage bulbs at your local home improvement store. They are 18watt as opposed to the 2 or 5 watts for 194's. You can also just install some PIAA or Hella driving or fog lights that would fit.
To get to the round parking lights, you can get to them by going down in the space between the headlight and the grille support. you may see a piece of black foam padding covering the area. The light housing twists out and if I remember right, it's righty tighty, lefty loosey. The bulb socket also twists out separate from the housing but the wires are too short to get to without taking out the light housing also.
The best thing to do is to remove the bulb socket first, then take out the light housing (Round light, lens assembly). Poke the bulb socket out the empty hole and replace the bulb then reverse what you did to get the whole thing apart..