We do not recommend Joombla at all! From our point of view, it's a pirate-app that doesn't respect copyrights and is outdated.
As far as I know most Joomla users use "SMF for Joomla" and then bridge SMF and Coppermine, but I'm not sure about that. Please search the board.
I wish you should reconsider about Joomla, if you don't know it then don't speak about it. What you are saying is completely wrong, sorry to say this, i am an official translator of the dutch translation team of Joomla and know Joomla many times better than you do.
first of all, after the split of Mambo and Joomla, the dev team of Mambo stepped away and formed opensourcematters and afterwards Joomla. So the whole Mambo system is made by the Joomla developers, so the thing that you say is not correct.
please read this also:
http://www.joomla.org/content/view/35/74/Who doesn't handle copyrights, Mambo or Joomla, the old dev team of Mambo leaved because of this issue, they leaved because of the mambo foundation wich was not the way it should be. So the reaction of the core team was correct to leave.
On your point outdated, Joomla is alive and kicking and since the start it has had more then 10 releases of the 1.0 release and the major stepstone version 1.5 is on the horizon with the first beta comming verry soon. Is it alive? Hell Yes! They also achieved many awards example best open source program.
Pirated application, partly correct, what stands in the GNU/GPL license? then the statement of pirated goes away... Also the 1.5 is a major change and is totaly different from 1.0 series and Mambo. And again that statement is totaly incorrect.
for a comprehensive overview of what Joomla realy is, please visit
http://www.joomla.org/content/view/154/74/So are you still thinking about Joomla the same way?
take a look on
http://www.opensourcematters.org/ and read about the real thing between mambo and joomla
Tha way Joomla handles bridging:
trough a component as an installable extension in the joomla backend, more info on extensions.joomla.org or direct link:
http://extensions.joomla.org/component/option,com_mtree/task,viewlink/link_id,613/Itemid,35/or if you also have SMF installed this is the configuration:
Joomla + installable extension component called "SMF bridge" made by Joomlahacks.com
SMF is then coupled with Joomla. Al the rest speaks for themselfs, in configuration of coppermine select the SMF method.
I want to apoligise if i was a bit rude but spreading correct information is more usefull. Joomla is a strong and secure interface and is not as bad as you are saying.