twinklevic

Hi, New to all this..... Ive inherited a toshiba s3000-x11 and according to stickers on it it should have windows xp home edition on it. But when i turn it on it sayd NTLDR Missing press ctrl + alt + del looked for a fix and they all say put in the disk.... but i dont have any..... any ideas? Ive recently downloaded widows 7 and was hoping to put this onto the laptop........ please help - and lets pretend I am a complete moron - so step by step idiot guide would be aprecited Thanks in advance:)