I NEED HELP WITH MY FLOYD ROSE

After I changed all the strings on my Jackson, my Floyd Rose trem has raised from it's original position. I know that this is caused by the higher tention of the new strings, but I'd like to bring it back to it's original position; I tried to tighten the screws on the back of the guitar, but they were already tight and wuold'nt get tighter. Help me!
Thanks

I don't know much about floyd rose's, but if you haven't tried it: Loosen your strings first (unwinding them a bit, don't nececeraliy take em off), the little the tension the better you can mess around with the screws.

Don't mes with the screws on the back of the tremelo thats whats keeps your guitar properly intonated. Take the back plate off your guitar and loosen the screws that are connected to the springs and the body until your tremelo is level with your fretboard.

I had a hard time but i think i fixed it, it looks like it was before changing the strings and now the strings will stay in tune. Thanks for helping, i really had no idea on what to do