Help? Problem with deleting photos from I-photo?

I have created some New Event trash folders to drag all my deleted photos from the trash bin as advised. I had thousands of deleted photos to deal with. Now the problem is that the bin looks empty but it still indicates that there are over 7000 photos left in it. I cannot see those items so I cannot drag them out. Should I start reloading the trash bin (small amounts at a time!!) when there is still an amount in it??? How do I get rid of the remaining items? Should I just go and do a repair or rebuilding now?? Please help! Thanks!