Does anyone know if this will work?

RX-51_2009SE_1.2009.42-11.002_PR_COMBINED_002_ARM.bin
OS 2009 version 1.2009.42-11
Maemo 5 USA variant for Nokia N900

I used this before;
RX-51_2009SE_10.2010.19-1.002_PR_COMBINED_002_ARM.bin
PR 1.2 version 10.2010.19-1
Latest Maemo 5 USA release for Nokia N900

or maybe I should try using Global?

I really don't know what I should do to fix these problems...