Log.io harvester won't read root owned file logs (CentOS 6.2)

[Ouaibe LLiseil]

Hi, first, thank you to those who build, and share on this very nice tool!

OS: CentOS release 6.2 (Final)
node -v v0.8.17
npm -v 1.2.0
log...@0.2.7
├── under...@1.4.3
├── sock...@0.9.13
├── con...@1.8.4
├── socket.i...@0.9.11
└── for...@0.10.0

user|group were created through install

Log.io server|harvester work, and show the requested logs names in the browser.
The only problem is that '/var/log/log.io/harvester.log' is the only log file it can read and print out up until now.
Any idea would be very appreciated!

References:
- Node.js install on CentOS  http://www.armetiz.info/install-nodejs-on-centos/
- Log.io >=0.27 install        http://www.linuxwind.org/html/log-io-real-time-log-monitoring-in-your-browser.html
- Building log.io on Redhat 5.8 (the newest Build Recipe for for 0.2.7 did not work with this version of Redhat; worked with Ubuntu and Redhat 6.0) https://groups.google.com/forum/?fromgroups=#!topic/logio/hSS4PlvjkQY
- Mike Smathers for setting "debug-level logging from the log_server" https://groups.google.com/d/topic/logio/ouli_Rpb7ts/discussion
- How to set up the log.io for other logs?        https://groups.google.com/d/topic/logio/VWgkujXaYRk/discussion
- Re: Build recipe (Centos 5.6), for useradd https://groups.google.com/d/topic/logio/NWOCPBcO0MQ/discussion