If you have a way to compare your tables (I use Navicat) then it is easy to find the differences.
Here is what I did to get from J1.0.12 and SMF over to J1.5.5 and FB 1.0.4.
First I upgraded Joomla following a similar tutorial to
this one.
This got all my 700 users into the J1.5. That was my main goal.
Then I followed a tutorial on this site (bestofjoomla) which I can't seem to find now. It had three files to assist with the conversion. The FB Component (V1.0.x), a conversion component, and a sql script.
After I ran the SQL script and completed the conversion, I upgraded to the latest version of FB. Then there were blank pages and blank popups in the FB admin area. After I compared the new tables with the tables off a clean install of FB I found the differences and added the fields that were missing. This problem was causing the blank pages. All my problems were gone and my site is working fine with J1.5.5, FB 1.0.4, and CB 1.1.
Then there is the paid version which is probably easier, I think it's US $20
www.bestofjoomla.com/component/option,co...il/id,985/Itemid,54/
I hate paying for stuff that's based off open source, so I found the free route and while it probably took an extra hour, it's done now.
I will also note that the import did not keep the threads together, every post got it's own new thread in FB. I had to go through and manually merge the posts back together through my DB admin software (navicat). If you have a lot of posts, this could be a real pain in the A$$.
There is another thread running here on bestofjoomla where they are trying to get merge/split built into the moderator settings which would speed that process up, and from the front end, but it still isn't stable. I think it's in 1.0.5 but haven't got to test it yet.
I hope this helps, I could find anything to very specific on this site that lays out where someone successfully got everything working. I can say I have, but it wasn't easy. I almost just stuck with SMF, but FB was just to attractive to pass up.
My only wish is a complete move over to J1.5 Native for FB.
Best of luck,
Aric
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