\tempo and Span_dynamic_performer errors in 2.10.20 on WinXP

[Nikhil]

Hello

I installed LilyPond on WinXP (SP2) and tried it with 
"blue_danube.ly" to get this error message:

-----[ start of error dump ]-----

# -*-compilation-*-
Changing working directory to `/sheets'
Processing `/sheets/blue_danube_new.ly'
Parsing...
/sheets/blue_danube_new.ly:344:19: 
error: syntax error, unexpected \tempo
          \midi {  
                   \tempo 4=150

error: unknown translator: `Span_dynamic_performer'

-----[ end of error dump ]-----

I'm unable to attach the file using thise gmane.org post form, 
so here is the link:
http://www.mutopiaproject.org/ftp/StraussJJ/O314/blue_danube/blue_danube.ly

What might the issue be?

Thanks.
Nikhil