Tried with the Classic Characters with the same results.

In your "Publish Scene" area there are three buttons missing, of which you give instructions that they are options to choose from:

1) Choose: PPT presentation (embed scene in a PPT presentation)

2) Choose: webpage without Javascript (left of publish scene) seems excellent for WordPress, since WP doesn't allow Javascript and to enable it is quite a project.

3) List of webhosts (left of Publish scene)

I am more interested on being able to place the avatars in PPT presentations.

Your site doesn't have the no javascript button.

Embedding sitepal in wp site was one thing and doing it in PPT was another. Two independent actions.

The problem is that in the website a blank space appears in the area where the avatar should be, see link:

http://revisarproductos.cash4yes.com/como-votar-con-el-escrutinio-electronico/

The other problem is that I have a ppt presentation, I downloaded and installed the ppt plugin in ppt 2007 and Win 10, but I can't access this feature to embed tha avatar there. In my sitepal account no link appears with the ppt link.

Chrome updates automatically Flash.