You are getting a kernel panic because you are trying to boot the computer with a Tiger DVD. That model requires 10.6.3 - Snow Leopard. You can purchase replacement discs from Apple:
Apple Store Customer Service at 1-800-676-2775 or visit online Help for more information.
To contact product and tech support: Apple - Support - Contact Apple Support.
For Mac App Store: Apple - Support - Mac App Store.
For iTunes: Apple - Support - iTunes.
Ok I tried what you suggested but I got the same results with booting from snow leopard disk. Right before I zeroed out the disk I had upgraded to mac os x lion. Would that make a difference? im currently able to enter recovery mode and single user mode (I think this mode too) but I dont have internet access for some reason it says no internet hardware installed, so I cant download the lion installation. Have a copy of it on usb stick but when I try to boot from it it just takes me back to recovery. Also In disk utility I can't repair permissions? In single-user mode I don't have root anymore for some reason after zeroing out files. Do not have a backup of original mac files either so the hard drive is completely blank. Help please?!!