Quoted from Topher5000:Here are pics of the rectifiers. Please be kind about my crappy soldering job.
Just looks like you need more heat. Those blobs should have melted over the tabs and coated them. Those really large metal tabs need a heavy amount of heat to flow the solder well, but not so long that the rectifier melts. If you can adjust the temp on your station, crank it up for those larger lugs.