so you say, the pads from the PCB have come off, and are still attached to the resistors?
You can locktite them back down, tiny amounts of 406 wil do (under each pad). Are the tracks busted too, if they are right at the pads then you may be able to scrape back the insulation layer (usualy a brown or green layer) from the track next to the pads, then if you tin these bits you may be able to bridge the gap with solder (may have to add abit of solder). but this would have to be done quickly as the locktite and the track may come off again with too much heat.
