There is a (rough) tool to help translating the wizard files (the .wd files of the template) and the .js and .inc files of the xot website. There is a Spanish translation in there, but I don't know the state. You can check it at xertetrans.xerte.org.uk. You can try the guest login (passwd gues, you can't modify the translation) .
If you want I can give you access to the Spanish translation.
Now, as to your question, yes you can get a copy from the googlecode website. Mind you that we are moving to GitHub shortly and will recstructure the repository, but now you can find the file you want here (at least I think this is the one you need):
xerte.googlecode.com/svn/trunk/Editor/draw.fla