Hot tuning coilover installation

[Shteifen]

Im in the process of installing my Hot tuning coilovers which i got about 4-6 weeks ago. though i was going to get them in sooner but apparently not.
I NEED HELP
anyway,
im having a bit of confusion figuring out which parts i put in. and what i mean by that is, do i keep the strut mount and bearing? do i ditch the metal cone/dome type thing at the top of the coilover? cos at the moment with the nuts provided i cant see it fitting. i tried raising the height before i put it in and the nut shot off the top and the spring flew out, like the nut wasnt the right onw or somethin, and yeah i did have enough of the nut on the thread.

the nut that sits at the top of the coilover for the front, doesnt go far enough onto the thread to allow the strut mount and bearing to be tightened properly without bending tiny little tabs on the inside of the nut. are those just supposed to be bent back, or shoul i just use the old nut from stock suspension?

thanks for any help, i need it quick of you have any info thatll help!

-steve