need help installing mac os x tiger

[kanavrishikumar]

hi

i am new to mac and seem to know nothing about how it works

my macbook dvd drive went bad some time back

and my mac recently crashed

i have the original mac cds so i purchased a external dvd drive

but as it turns out it can t boot from a exter usb dvd drive

so now my computer is not working

when i start it

it seems to boot into safe mode itself

and gives the errors

u need to restart ur computer hold the power key fer a few seconds

it s called panic or something in the apple website

i need help on how to fix my laptop

please some one help me

i have a external usb hard disk drive

and a windows based laptop if this can help

even a external dvd reader and the original mac cds