Changes made to editor_template.js:

#1) Add the name of the window to the tinymce2 size cookie:

This snippet of code:
Cookie.setHash("tinymce2_" + ed.id + "_size" + window.name, {

was originally:
Cookie.setHash("tinymce2_" + ed.id + "_size", {

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This snippet of code:
var o = Cookie.getHash("tinymce2_" + ed.id + "_size" + window.name), c = DOM.get(ed.id + '_tbl');

was originally:
var o = Cookie.getHash("tinymce2_" + ed.id + "_size"), c = DOM.get(ed.id + '_tbl');

