Gnumeric for windows with more than 256 columns

[Giorgio Luciano <giorgio luciano chimica unige it>]

Hello to all,
I'm sorry for the newbie question, I've searched in the mailing list but 
I've sen that there are problems with indexing.. i've searched also with 
google and find partial answer to this question. I'm getting rid of M$ 
and every no opensource software.. I need to manipulate a file with more 
than 256 columns (2000 columns) but I dont' know how to recompile 
Gnumeric for windows.. does someone have a version of Gnumeric for 
windows recompiles with option of more than 256 columns ?
I've found some links but they seems not more valid. I will really 
appreciate any help :)
Please help me freeing from Excel slavery !
Thanks
Giorgio