Sorry, no.
This is Brian Lowe, posting under his company name "Group BCL". I wrote the Category Descriptions mod, and it appears I'm still the maintainer :D.
The README file for the latest version of the mod is now out of date. As of two weeks ago I have started a full time job. Which unfortunately leaves me with even less time to put into maintaining Category Descriptions.
So, while it's not in the spirit of open source software such as OS Commerce, I have been asking people for a financial contribution to cover off the estimated 10 hours of work I estimate it will take me to get this working. That includes the time required to download and install MS2, update the source with the patches posted in this thread, test it, update the documentation, build a new package, and upload it.
Usually I get replies along the lines of "Sorry, but I'm just starting out myself and can't afford to pay you." Which is quite understandable. Being marginally employed for two years has also stretched my bank account rather thin.
Yes, I will eventually get around to updating my mod to work with MS2, if no one steps forward first with a bit of money. When, I can't say for sure. It's summer here in Canada, and with summers as short as they are in this part of the world I'm not very willing to give up a weekend at the beach to work on my mod 8)