Hello,
What are the best software packages for maintaining a classifieds site, either freeware or not too expensive, and with accessible source code (it doesn't have to be "open-source" strictly speaking (I don't intend to modify and redistribute it), but it has to be customizable / maintainable)?
It also should be multilingual.
Any suggestion welcome!
Thanks,
Probably the best thing to do is learn about a CMS that you can customize to do what you are looking for, I would recommend Drupal but there are others. With a few modules and a lot of trimming down the available content types you will be able to get what you're looking for.
Drupal also includes multilingual support, but it is a lot of work and separate installations is probably a better solution.
DotNetNuke is a "free" platform and appears to have addressed the feature you seek;
http://www.dotnetnuke.com/Community/Forums/tabid/795/postid/37146/Default.aspx
Given the DotNetNuke framework, there are other things in the bag that you may find of use.
Hope it helps --