sentinel.tcl v2.70 is not present in netbots.tcl v4.09 because it's technically different - one is in standalone form, the other in component form (although the differences aren't all that dramatic). What I believe you wanted to ask was whether netbots.tcl v4.09's sentinel.tcl component is equivalent in terms of features to the standalone version, to which the answer is yes. You're not missing out on any wizz-bang improvements by using the "older" netbots.tcl component version.
The v4.10 test release that was sent to some users a long while ago is no longer relevant, and those users should switch to v4.09 until a new test release is out (at which time I'll probably make a private forum to better communicate such things to beta testers).
Yea That'll be like so nice..
Cuz some mails dont get replies so soon, or never at all. Like for example when i mailed about something i wanted to know about the beta version, and im still waiting for its reply