sony vaio laptop pcg-505tr boot error

hi,i really need some help.i attempted to load win2k on my sony and it stopped in the middle of installing so i decided
to leave well enough alone and use win98(the orginal op).i notice a file ntldr so i deleted it and now everytime i try to turn on my lartop it show the sony screen and then goes to this error page stating ntldr is missing press any key to continue.when you press any key the same error keeps scrolling down the screen.i tried boot disk(win2k and win98and dos)nothing seems to work.how can i get my laptop back to normal?????i
called sony and ordered their recovery disk which should be here in 5 to 7 days.
should i just wait on it or is there something else i can do in the meanwhile.
pls oh pls help.thks bryan davis ginuine2@hotmail.com