as per recommendations of vb.com i got nginx installed on server positive this is load is down from 25+ to 5 bad thing is site translations stopped working completely, i am forced to remove mod which i bought to improve my traffic

my site details :-

vbulletin 4.0.3 latest
vbseo 3.5.0 pre release
apache 2.2.x
latest nginx proxy to serve static content


thanks in advance