Sorry this is short but don't have much time - these notes might save you some effort. Note neither is always true - but I haven't figured out the exceptions.

Alice does not generally support integers, even in "number to string" conversions for 3D text. This was a deliberate decision made based on their studies of different ages of students - see some of the references on their main web page.

To download from the web gallery, I usually have to load the object into a specific open world, then save from there to a temporary file and later move it into the gallery in the Alice directory. Think it has something to do with the formatting of the .a2c file but haven't figured out exactly what.