I'd like to apologize again for leaving this template hanging for so long. I am going to try to think more in terms of minor and major updates this term, so that at least the minor ones will be able to continue to come out every month or two. I've uploaded a minor update to the Magic Set Editor site; it fixes the Aid keyword and allows the character Ú to appear in titles. I wasn't able to come up with a more general fix, but if there are other characters people would like to get supported in the title, I should be able to accomodate that in the next minor update.
Looking to the future, I expect the next update to arrive in late February (reading week in Canada). I would like that update to be a major one, including new sites and signets, but I don't want to make any promises I can't keep.
ThornyB, I assume that by "printing proxies" you mean printing your own custom cards; printing your own copies of Decipher's cards is almost certainly illegal. Your best option (that I can see) is to use the "export all" function, which will give you a collection of .jpg files. You can then copy them into a single file using photoshop or word or whatever, and adjust the sizes there. I imagine there is a better method, but I couldn't find it easily.