wmtipton wrote:Is this release 'ok' to use now?
Yes and it is fully supported
wmtipton wrote:On the download page it still said 'unstable' release, so is it going to work if I convert now?
Compared to the beta versions it is stable but as it is only a Release Candidate no guarantees can be given about its stability. If you read these forums you will see that there are many users using RC1 in a live situation without any major problems.
wmtipton wrote:Also, how does it work when it converts the forum?
When you install phpbb3 you will install it in its own database. When you run the converter it will copy data from your phpbb2 database and load it in the appropriate tables in your phpbb3 database - leaving your phpbb2 database intact.
wmtipton wrote:Can this be undone or do I have to reinstall the Version 2 if something goes wrong ?
Not without a lot of manual effort.