IPhoto/Spotlight not indexing SOLUTION *edit

Question

For those iPhoto 6 users whoose comments and keywords not being indexed by Spotlight, here is the solution to your problem!
If you are getting * Parsing file: '~/Pictures/iPhoto Library/AlbumData.xml'
ERROR: syntax error (<key>PhotoCount</key>) when you try to manually index your iPhoto library with mdimport, this will solve your problem!
You can only have single-line comments on your photos:
- Create a smart album: "Comments... contains... [option][return]"
Note: press option+return with your keyboard... the box will appear blank
- The smart album should become populated with photos where you entered a comment containing a character return
- Click the ( i ) in the bottom left-hand corner to draw up the info for each file, and manually remove the character break until your smart alum is empty OR go to Photos -> Batch Change and enter a new comment. Make sure that "append" is UNCHECKED -- This will overwrite all of the comments.
Now, you must also make sure you only have single-line comments on your rolls:
- From the iPhoto Library, go to View -> Sort Photos -> By Film Roll
- Hold the Apple (command) key, and click the drop down triangle once or twice (until all are collapsed)
- Manually examine each roll and make sure that the comments (if any) are all on one line.
Note: If the comments are all on one line, the whole line will be visible in the collapsed view under the Film Roll name
Quit iPhoto
Open Terminal (in the Utilities folder)
- Type mdimport -f ~/Pictures and hit return
- After some time, a message should come up saying:
* Parsing file: '~/Pictures/iPhoto Library/AlbumData.xml'
As long as there is not an error message underneath, this is good!
- When the command has finished running and you're at a blank prompt again, quit Terminal
Open iPhoto
- Click iPhoto in the menu bar, and go to Preferences
- Click the Keywords tab
- Click the "+" and create a new keyword called Spotlight
- Close out of iPhoto preferences
- From the iPhoto Library, select all of the photos (Edit -> Select All)
- Get info on the files (Photos -> Get Info)
- Select the Keywords tab
- CHECK the box that says [Spotlight] *THIS MIGHT TAKE A WHILE
- UNCHECK the box that says [Spotlight] * THIS MIGHT TAKE A WHILE
Note: This forces all of the pictures to be updated in the database
- Quit iPhoto
Search for your comments and keywords with Spotlight

Answer 1

Can I ask, does this need to be done every time you add photos to iPhoto, or is this a one-off trick to get Spotlight to look at iPhoto keywords in the first place?
My first experience with iPhoto is iPhoto6 so I don't have any baggage that I am bringing from earlier copies of iPhoto. I've imported in 1500 photos and am working my way through tagging them with keywords and am hoping that spotlight will index them. Is this bug related to keywords applied in older versions of iPhoto, or does the issue manifest itself even on a brand new library? Are Apple looking to patch iPhoto / Spotlight to resolve this?
Thanks.
Graham