For the hell of it, just did a cursory Google search on 5k training. The first couple of links were along the lines of "Well, if you want to finish a 5k in twenty or thirty minutes, you should be running about 40 miles a week," so color me relieved when I found The Couch-to-5K Running Plan.
But... Wow. Coincidences are awesome.
Their plan is 9 weeks long, and I just did some counting. The Revlon Run/Walk 5k is on May 7. Exactly nine weeks from now.