Multiple Repair issues

[Roninwpb]

I've been Lurking on this forums and have gotten Many great tips and instruction on fixing up My "new" Pool ( To me anyway ).
I have posted pictures on my website under "Files" And "Pool Deck".
See:

DEAD PHOTO LINKS

The files show plumbing work and cleaning issues. The pool deck section shows A few issues I need help on. They are:

1: Cleaning stains off the freshly pressure washed deck.

2: Fixing what looks like possible trouble with cracks in the deck.

3: Hiding previous repair patches.

4: What looks like a floating deck issue.

I would appreciate any help from the forums at large. I have gotten so far and need some help with what the next step should be.

Thank You For Your Help!

Ron In West Palm, Fl.