Ok, so what is your question?
Once you clean the tent don't forget to waterproof spray the tent and fly, and put some seam sealant on the seams. I use Nikwax Tent and Gear Solarproof spray that has waterproofing in it, my tent manufacturer recommended that product, and they also recommended Gear Aid Seam Grip + WP Sealant + Adhesive seam sealant. You need to do this every season, and sometimes twice or three times a season depending on how much rain you're going through.
After a night of downpour rain with high wind, and my old tent failed and leaked like crazy and I got wet, I now wash my sleeping bag with Nikwax Down Proof detergent that waterproofs the bag and the insulation while it washes. So, I'm hoping if I should ever get a leaking tent that I will be dry inside the bag, but at least the stuff made my bag come out clean!
You should be using Gear Aid McNett Zipper Cleaner and Lubricant on your zippers making sure not to get the stuff on the tent fabric. Or cheaper yet, is to rub candle wax on both sides of the zippers, this will lubricate the zips and make them glide but won't damage the fabric of the tent. You need to do this every season.