Hi,

I work for a company that has a complicated and poorly documented software product.  I want to set up a wiki for the customers to use, and start filling it with information on how to complete common tasks and, perhaps, eventually even host the manuals we DO have so they can be updated over time in a way that is easy to search and access.

Each wiki page doesn't need to be complicated, but it almost certainly needs to have sections, bullet point instructions, and most importantly, screenshots following each of those steps that illustrate what the screen should look like.

Longer term, each page should be able to support its own screenshots with their own filenames.  Like, if one page has screenshots labelled 1, 2, 3, 4.jpg, then a user should be able to create another page with screenshots labelled 1, 2, 3, 4.jpg without affecting those previous files.  So far that seems the most steep requirement.

I'll run it on a windows machine, any configuration is fine though IIS+Postgres backend are preferred.  I'll take anything that really does what I want though.

So far I tried xwiki and mediawiki.  Xwiki seemed okay to start with, but after setting up a few pages and uploading the images, I discovered either I'd set it up wrongly or it doesn't work properly with Firefox or it was pretty broken and hard to deal with for uploaded files.  The images couldn't be deleted, at all, and that whole aspect of it didn't seem to work properly.

Mediawiki on the other hand I didn't get very far with at all... any kind of admin operation seems to require back-end hacking of the files and/or database, and I still couldn't find a way to properly delete wiki pages that had inappropriate content - it would just move them to the deleted items folder and there was no way to get rid of them from there.  I also think it wasn't going to handle repeated filename attachments across pages.

So ... any advice?  Naturally it has to be free, this company isn't going to pay for anything.