First of all, ignore the TDS and Phosphates readings you have, they are irrelevant in your current situation. I would start with adding approximately 1.5 gallons of 6% bleach to raise your chlorine to around the 6-7 ppm range. You're going to have to add bleach daily, preferably at night after the sun is off the pool, until you have some measureable CYA in the water. After you add your chlorine, I would go ahead and add enough stabilizer per the label directions to shoot for about 30 ppm (more or less if you have a preference). I usually add mine through the skimmer and let it dissolve in the filter, others have put it in an old nylon or tube sock and let it dissolve that way. In either case, be aware that it takes awhile (up to a week or so) for it to completely dissolve and show up as testable levels in your pool, so don't retest for it or add more 'til then.
Leave the calcium and TA alone. Might want to lower your pH just a TAD using muriatic acid--it should be in the 7.2-7.6 range.
Janet
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