invisible files

[g_force1391]

so, in an attempt to resolve an endless boot loop problem I get when trying to boot from the hard drive of with my new (and first ever) hackintosh build i found a tutorial explaining how to copy the "mach_kernel" file from the "/extras" folder of the iboot dmg into the /extras folder of my hard drive. I can find all the files just fine but when it comes time to move the new kernel file onto the hard drive i get a "this item cannot be moved because it is invisible" message even when I've unlocked permissions for all files and folders involved. very confused. would greatly appreciate any help. thanks.

( don't know if it matters but I'm currently running snow leopard)

 

[teraflow]

Have you tried deleting the file you're trying to replace?
Should work, I've done it that way a million times