Whilst adding photos/movies to my iPhoto 11 Library (version 9.4.2) stored on Time Capsule, it crashed.
That's not an appropriate setting for an iPhoto Library.
How are you linked to it? Wireless?
So if they are there why cant I see them in iPhoto.
Because you damaged the Library in the crash.
First off, move the library to an appropriate setting - any disk formatted Mac OS Extended (Journaled) with a cable based connection.
Download iPhoto Library Manager and use its rebuild function. (In Library Manager it's the FIle -> Rebuild command)
This will create an entirely new library. It will then copy (or try to) your photos and all the associated metadata and versions to this new Library, and arrange it as close as it can to what you had in the damaged Library. It does this based on information it finds in the iPhoto sharing mechanism - but that means that things not shared won't be there, so no slideshows, books or calendars, for instance - but it should get all your events, albums and keywords, faces and places back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
If you're not using it as a Time Machine device then you can use it as an external HD.
And you can run iPhoto over a wireless connection. You can. But I wouldn't.
A strong warning: If you're trying to edit the Library (that is, make albums, move photos around, keyword, make books or slideshows etc.) or edit individual photos in it via Wireless be very careful. Dropouts are a common fact of wireless networking, and should one occur while the app is writing to the database then your Library will be damaged.