Problem with Sort Criteria in XSLT

[sgasch]

I have some sort criteria which I used in HTML in FMP 6. When I use the CDML Converter, it seems to convert properly, but when I run it, it gives me a field missing error (which is not caused by the rest of the body - that works until I add back the sort criteria lines). Does anyone have a properly working sort criteria that works??

Any help is appreciated.