Apple tech recommended making multiple new libraries to handle all the photos (which appeared to be around 35,000).
There is no need for that as iPhoto 11 can handle 250,000 photos and more.
You have two options for moving forward:
1 - run iPhoto LIbrary Manager in an attempt to rebuild your library into a new, separated library leaving your current library untouched.
2 - Starting over from scratch with new library
Start over with a new library and import the Originals (iPhoto 09 and earlier) or the Masters (iPhoto 11) folder from your original library as follows:
1. Open the library package like this.
2. Launch iPhoto with the Option key held down and, when asked, select the option to create a new library.
3. Drag the Originals (iPhoto 09 and earlier) or the Masters (iPhoto 11) folder from the open iPhoto Library package into the open iPhoto window.
This will create a new library with the same Events (but not necessarily the same Event names) and all the photos in the original library but will not keep the metadata, albums, books slideshows and other projects.
Note: your current library will be left untouched for further attempts at a fix if so desired.
OT