Christine Manor, CPA, the main author of the UCOA (third edition), has just published her updated QuickBooks for Not-for-Profit Organizations for 2008. From the publishers website:
QuickBooks for Not-For-Profit Organizations 2008 provides detailed step-by-step instructions on how to use QuickBooks in a not-for-profit environment. Also included with the book are downloadable practice files with complete examples for using QuickBooks in a Not-For-Profit organization. QuickBooks for Not-for-Profit Organizations includes clearly illustrated screen shots and sample data practice files that will allow you to practice each step as you read about it.
I have and use the previous version of her book and I do recommend anyone using any version of QuickBooks for nonprofit accounting give it a once over.