Convert the files into a zip file, or a series of zip files if they are over 50MB. Open up the Free Robots page. In the top right there is a "Post Thread" tap.
Click on that, a submit form will open up. The attachment shows the page. At the top is the Title and Prefixes banners.
Then there is a thumbnail bar. For that, you have to find an image of what you want to post online, or something that is close to it, then copy the web page of that image into the line.
Then the Author bar, if you do not know, just type in "Unknown".
Next if a Printed File Format bar (PDO,PDF, JPG...etc)
Then there is a Page(s) bar, You must give a total amount of pages to print for the project.
Then there is a Part(s) bar, this is totally optional. If there are too many to go through, forget about it.
Next is an Instruction Format bar, very similar to the Printed File Format bar. If it is all in one, just repeat what you put into that.
Below this is is a text box, where you can write whatever you want about the project.
Underneath this are the Attach Files and Upload Image tabs, where you could attack JPG images, or Zip file files to the page.
Underneath this are Tags, and then a couple of tick boxes.
And underneath these is the Post tab. If everything is correct, when you hit this, your page would be created.
I hope that this helps.