1. am i still able to make the holy sword if i killed the things in the crypt before i got the weapon?
In which crypt? In the one where you should do the ritual in order to get the holy weapon? If you touched the graves there the quest is broken, but raze has a fix for this which you can find
here. 2. where do i find the dragon armor gauntles and is there dragon armor boots?
Take a look at the elven burial ground in the south of dark forest.
3. where do i find the elven neckelce for my true love ( its lost)
Maybe you should talk to a dwarf who has special knowledge about juwellery.
4. the dwarving king asked me to go back into the mine after returning the stone axe to him...... do i do anything else for him after he gives me the armor?
Did you have the stone axe, dwarfen council member quest finished already? If not, take a second look nto the dwarfen mines and look for a letter there.