Why would one not want to use the latest version of Tor, especially after the massive security issue that needed everyone to update?
I like my old Tor/Vidalia/Privoxy bundle, it was secure for long enough has it now been compromised in some way?
It has been updated several times recently to fix security issues, never use an outdated version of software like Tor. I'm surprised that someone using anonymity software doesn't feel inclined to keep more up-to-date concerning security news like this: https://blog.torproject.org/blog/tor-02234-released-security-patches
What's surprizing is how many relays have not updated, some in quite a while. Check out http://torstatus.blutmagie.de/index.php. Hover over the OS symbols for each relay.
There is this looming issue: -https://blog.torproject.org/blog/plain-vidalia-bundles-be-discontinued-dont-panic