1998 Honda Civic no fire at plugs

Hi,
This site seems great and I hope it helps. I am at wits end.
My daughter has a 1998 civic ex sedan. It stalled on her a couple of weeks ago and when I went to get it it wouldnt crank. It wasnt getting fire. My first attempt was to replace the coil. I bought plugs, wires, rotor button, dist cap, and the coil. Went and installed it all and nothing changed. I put the old coil back in and somehow the ignition got left in the on position and I accidently laid my arm accross it and it definitley WAS getting spark. Next I thought that the stator was bad. I returned the coil and tried to purchase the stator. They didnt have it so I purchased the entire distributor. Swapped it out and it still wouldnt crank. It turned over but no spark to the plugs. I swapped out the distributor again and it cranked but it sounded terrible as if it had jumped time. I removed the timing belt cover, and the belt looked fine and tight. No worn teeth on the belt or gear. I checked to make sure that the wires were installed correctly and they looked right. The check engine light was on and I was able to nurse it to A Zone for them to look for a code. It was running like crap, spitting, sputtering, and backfiring slightly. The code said that O2 sensor was bad. (More money) I replaced it and it ran the same. Crappy. All of the sudden I looked at a dist cap digram and sure enough, two wires had got crossed somehow. I switched them and thought that I was out of the dark. It cranked, and ran great. Now the mystery begins. This car will start up and run perfect with no check engine lights or anything. (The O2 must have worked). However after almost exactly ten minutes it just shuts down as if I turned the key off. It turns over fine but has no spark. Someone told me that there was a recall on the ignition switch on that car, so I went and purchased a brand new complete ignition switch and assembly. I replaced it and it cranked perfectly. Again I breathed a sigh of relief. Not after ten minutes. It shut off again. As mentioned long ago, I am at wits end with this car. It is the first trouble we have had from it. I replaced the cat converter about four months ago, and thats about it. I dont trust the Honda dealer in my area, and am willing to do anything for a correct solution. As far as the ECM is concerned, when I turn the ignition on, the lights come on for a couple of seconds and then shut off. And when it stalls, the lights stay on like they are supposed to. What about this main relay solder cracks I have read about. Is there any truth to that? Please, Please, Please help me!