While you can post a TiddlyWiki document to a server and read it via
http:// protocol, TiddlyWiki is not designed to allow online editing
by multiple users. Therefore, by default, the editing features are
disabled when viewing a hosted document via http:// (as opposed to a
local document, viewed via file://).
Note that you CAN enable *editing* of the document (see
[[AdvancedOptions]], and uncheck the "Hide editing features over http"
option)... however, this will NOT let you then *save* those changes to
the server.
There are server-side solutions that extend TiddlyWiki to allow online
saving, such as UploadPlugin (used by TiddlySpot), but this does not
provide support for multiple users editing the same document.
You might look into ccTiddly, a server-side adaptation of TiddlyWiki
that stores tiddlers in an on-line database, and supports multiple
users, revision history, file locking, permissions, and other nice
'group ware' features.
HTH,
-e
Eric Shulman
TiddlyTools / ELS Design Studios