if i already have 0.54 installed, do i need to install 0.58 or is there another option? Thank you!

Wut?
Is there 0.58?... -.-

No you don't. Each install holds the full thing. They're not like patches. It doesn't matter if you skip from .33 to .58

I actually didn't saw 0.58, because it's not on the home page.

0.58 is the recent uptate, and you have to install it, it will replace the 0.54 file, but there is other options, I just can't remember them off the top of my head :P

so can i install it on another comp (comp 2), copy the files from comp 2 onto usb and replace them with the ones i have on comp 1? (i dont have admin rights =P)