Numbers 09 not working - I can open the program but only a few files are available, missing blank, checklist and many others. e.g when I click on a file I get this error: The document "nmbtemplate is invalid. The index.xml file is missing. help.

Please let me know what I can do to get my Numbers (iWork 09) working properly again.

Here is what is going on:

Numbers in iWork 09 not working can't access Blank, Checklist and many other files within Numbers. I can open the program but only a few files are available. When I click on the file (which also has no icon just the name of the file) this warning appears:

The document "Blank.nmbtemplate" is invalid. The index.xml file is missing.

I recently had to get a new hard drive installed and had the system upgraded and more memory put in by a Mac certified specialist recommended to me from the Apple store in Northbrook because this was the 3rd time my drive went bad but this time it was to old (I got the IMAC- in 2007) and the Apple store could no longer work on it this time so they recommended a few places that had certified Mac specialists. Since then Numbers is not working right.

I'm sure it's something simple to fix, but I've tried re installing it and that didn't work. Appreciate any help.

Thanks

AppMare