Cannot start as service in Ubuntu 10.04 Server / Netflow Analyzer 9: wrapper: not found

Hopefully someone can point me in the right direction:

I've got Netflow Analyzer installed and working, when run from the command line. I'd like to get this running as a service.

I've executed the linkAsService.sh and it's put a link in the /etc/init.d/ directory. However, running the /etc/init.d/netflowanalyzer start command results in a error: 'exec ./wrapper: not found'

Same results if I hardcode the full path in the na_service script to point to the wrapper file and wrapper.conf file.

Wrapper exists in the /bin directory for Analyzer, but I can't run it from the command-line either; says 'bash: ./wrapper: No such file or directory'

Anyone seen this before and have a solution?