I'd be very curious as to how you were able to export as CSV and have Catalyst read it. I posted my woes else where here and found out that Catalyst needs Tab Separated Values for the import to work correctly. A quick hunt on the Apple Discussions site provides that Apple Numbers only exports as Comma Separated Values.

The work around that just worked for me:
In Numbers:
Enter all info into columns as needed
Select all
Copy
Open New Text Edit Document:
Paste in a blank TextEdit document
Apply the format Text (Shift Apple T)
Save as Text File

Edit Fixtures in Catalyst and Import. Worked well except it missed the "NAME" column. Much easier than trying to patch and arrange in Catalyst.
I gave up on supporting MS for Mac products long ago when I decided that I would actually licenses all the software that I use. Just did not seem worth the money. This is the first time that Numbers or Pages has let me down... Not too bad. And a pretty easy work around. Others, who have many spread sheets are not so happy...

See this thread at Apple:
http://discussions.apple.com/thread....43910&#7643910