st: xtivreg2, overidxt,

[ncdcta00@uniroma2.it]

Dear statalist,
I have some problems to implement xtivreg2 because stata give me this error:
Error - must have ivreg2 (or ivreg28, for Stata 8 users) version  
2.1.15 or greater installed
r(601);

I have update stata, I use stata 9 and I installed the package iverg28  
and ivreg2.

Other question is: how I interpret overidxt? when my p value is 10% my  
instrument is correleted with my dipendent variable? or I refuse the  
null hypothesis  and so the instrument that I use is ok?
thanks so much for your help

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