IPhoto Library no longer accessible from Photoshop

Question

Till now I used a Power Book G4, I life 05 and Photoshop CS2. No problem opening iPhoto Library pictures in Photoshop for working on them.
I built different iPhoto Libraries for getting them lighter...
Now I got an iMac Intel Core 2 Duo, 3.06 Ghz with iLife 09 but still with CS2.
The thing is: If I open one of the libraries with iPhoto8, the library is rebuilt to the new standarts of the new version of iPhoto but after that, this iPhoto Library is completly inaccessible to Photoshop (the Library icon is in grey).So impossible to browse and select a picture !!
I must precise I desinstaled CS2 and reinstaled it from the CD but the problem is persistant.
Regarding the other libraries that I didn't open at the time (and consequently are not "rebuit"), I have no problem for opening the pictures with CS2.
Who can tell me where is the problem? Is it a new rule (no access to other applications?).
The fact is this is very boring and a waste of time opening first iPhoto and then dragging the pictures in a "transit" folder before at last opening them with CS2......

Answer 1

Gerard:
The following are tips on how to use Photoshop from within iPhoto as the editor or choice:
Using Photoshop (or Photoshop Elements) as Your Editor of Choice in iPhoto.
1 - select Photoshop as your editor of choice in iPhoto's General Preference Section's under the "Edit photo:" menu.
2 - double click on the thumbnail in iPhoto to open it in Photoshop. When you're finished editing click on the Save button. If you immediately get the JPEG Options window make your selection (Baseline standard seems to be the most compatible jpeg format) and click on the OK button. Your done.
3 - however, if you get the navigation window that indicates that PS wants to save it as a PS formatted file. You'll need to either select JPEG from the menu and save (top image) or click on the desktop in the Navigation window (bottom image) and save it to the desktop for importing as a new photo.
This method will let iPhoto know that the photo has been editied and will update the thumbnail file to reflect the edit..
NOTE: With Photoshop Elements 6 the Saving File preferences should be configured: "On First Save: Save Over Current File". Also I suggest the Maximize PSD File Compatabilty be set to Always.
If you want to use both iPhoto's editing mode and PS without having to go back and forth to the Preference pane, once you've selected PS as your editor of choice, reset the Preferences back to "Open in main window". That will let you either edit in iPhoto (double click on the thumbnail) or in PS (Control-click on the thumbnail and seledt "Edit in external editor" in the Contextual menu). This way you get the best of both worlds
2 - double click on the thumbnail in iPhoto to open it in Photoshop. When you're finished editing click on the Save button. If you immediately get the JPEG Options window make your selection (Baseline standard seems to be the most compatible jpeg format) and click on the OK button. Your done.
3 - however, if you get the navigation window that indicates that PS wants to save it as a PS formatted file. You'll need to either select JPEG from the menu and save (top image) or click on the desktop in the Navigation window (bottom image) and save it to the desktop for importing as a new photo.
This method will let iPhoto know that the photo has been editied and will update the thumbnail file to reflect the edit..