thanks for assisting. i ran that command and see 3 repos which provide nginx. from what i see there, the 1.7.0-1 wheezy package is the candidate and also has been installed.

i just checked my local development machine which is running lmde - the version of nginx is also the same spurious ubuntu 0.91 version.. yet the 2 machine are using different repos.

i am not seeing 0.91 listed anywhere other than when i run service nginx -V