nginx configuration for elgg 1.9

we discussed (on github and in the community) how to configure elgg 1.9 for nginx previously and i did have a working config file here. however, i recently lost the config file while upgrading the local OS and have not been able to locate a working one in the community here or in github.

when i run the one i grabbed from a discussion in github, i just see 'pageok' in the browser window.

from what i can tell this may be related to a domain routing issue, rather than an nginx mis-configuration.. however, so far, i haven't found the cause of the issue.

can anyone point me in a helpful direction to get 1.9rc7 running with nginx?