You can upload parts (the .fzpz file) via the upload function (7th icon from the left in the reply menu.) To make this part I swiped the image from the pdf data sheet for breadboard and overlayed that with the headers. The work flow I use is detailed here:
One of this series shows the various ways to suppress pcb. Schematic can be suppressed in a similar manner or by the hybrid keyword.
The svg being incorrect is the most likely problem. The red square in a view usually indicates that the connectors defined in the fzp file are not correctly defined in the svg file for the view.
Peter