yesterday my sql server 2000 ent crash because of an operating system problem i seem to have lost all my .ndf, .ldf, .mdf files from the DATA folder but i still have my full backup files in the BACKUP default folder from the day earlyer can i still restore my database to the state prior with all my data in it.
You can restore the database back to the time of the completion of the last backup. If you do only complete database backups, you can restore to the end of the last backup. If you do incremental backups, you can restore the last complete backup plus all of the incrementals in an unbroken chain. If you have any missing incrementals, the ability to restore them stops with the first one you are missing.