Putting Up a Demo Page

Hello,

I am now extremely close to inviting Presenters, who must then upload classes and information.

I am using the HTML editor to make it as simple as possible for them to provide bio and class information.

I want to increase the chances of them accepting by putting up a demo page so they can see the editor in action. I have disabled its save activities.

But I would like it to be possible for invited Presenters to also place images. Then they have a clear idea of the overall scenario.

I have disabled the file browser. But I would still like it to be possible for them to say copy the URL to some image, and then place that image in their trial text so they can get an idea of that editor feature.

At the present time, that does not happen. (Since this is only a demo, I believe URL posting to be the better option)

I have put the URL, and also FTP information, for the demo page in the private area.

I would be grateful for information on how to complete the project.

Or else ... ... ... if it is ill-advised, because e.g. hackers or whatever, then please advise.
I estimate that it would only need to be up for about 3 weeks, and I will also only give the URL to those I am inviting.

Thank you.