first is the forum problem.

how do i set the forum to be flat permanent?

second is how to let my user to upload pic in the forum?

pls help.tq

to set your forum to display in flat mode - set the "Default Comment Display Mode" to flat in "System" -> "Preferences" -> "General Settings" Then check your user's "Comment Display Mode" setting in "Edit Account"

For your second question, if you are talking about the user avatar (displayed under the username in each post), that is controlled in "System" -> "Preferences" -> "User Info and Settings" under the setting "Allow Custom Avatar Upload". A user would then upload their avatar from the "View Account" sidebar option.

If you are referring to embedding pictures into their forum posts, you can use the image manager to do this. In "System" -> "Images" create a new image category that every group can use to upload. Then click on the image manager icon above each forum post to upload an image.