Heya I'd like to help too - able to test on debian stable and testing. isabela at riseup.net:

What we are asking volunteers:

* Validate release signature/checksum

* Does it build with _no_ Warnings?

* Does "make test" pass?

* Does "make test-network-all" pass? (you'll need chutney for this - chutney does not work on Windows)

* Does it work as a client? As a relay? As a hidden service ?

* Does it work if you drop the binary into (eg) torpbrowser?

We are hoping to find enough people that we can test the releases on as many OS's as possible. Some OS-specific notes:

* on Linux and BSD, Tor requires some dependencies (read INSTALL).

* on OS X, you'll need to choose a package manager (HomeBrew, MacPorts, Fink), or install dependencies from source,

* either way, you will need to tell configure where the dependencies are located.

* on Windows, people sometimes have trouble building Tor. Help us update our build instructions for Windows!

Our goals:

* We hope to have tor alpha releases tested within a week of it going out

* We hope to have people testing it on as many OS's as possible

* Reduce the number of bugs found when we launch a release candidate and/or stable release

* We want operating systems and configurations other than the ones we use in development to get tested BEFORE we declare the release stable.