Q: I accidentally restored and old backup on my phone and it deleted photos. How can I got back to the date where i had the photos?

That would depend it you made a backup of your current data or not.  IF you did then you can restore your phone to that backup http://support.apple.com/kb/HT1766 .

If you didn't then those pics are gone.

For future reference import your photos on your camera roll as you would a digital camera http://support.apple.com/kb/HT4083  you can always sync those pic back to your phone via itunes.

Yes, but only if a backup exists from that date and time.

Keep in mind that iOS backups are rolling backups, meaning each time a backup is created, the changed information is merged into the backup.

To explain a little more clearly, if the device is backed up every day for a week, there is one backup, not seven.  The only reasons a new backup are created is if the device is updated (new iOS version) or is restored.

Well, you might still have chances to get back deleted photos on iPhone.

Not from iPhone or iTunes, just from your Mac machine.

It just depends on when your deletion happens, before or after your most recent sync?

If this happened after that, then probably you could rely on this data recovery program to restore deleted pictures from iPhone.

Regards.