Yea his Rig Veda is atrocious. There are glaring errors. I've heard that his other texts are similar although after the RV I didn't have it in me to try and read more of his work.
You're not going to find another free translation....not that I know of anyway. You may find a better one at the library. If not you can order them online but I don't know how expensive it will be.
Hari Om!
There are small compilations of Vedic hymns in various books in my library's system, but nothing extensive. (The main one being a collection published by Penguin Classics, but it's selection is very small.) Most of them come in collections of Hindu Scriptures (often with that very title or something like it), but very few hymns are included.
grr... I'm trying to become Hindu and I don't even have access to the primary texts!!! Maybe when I'm older and can read Sanskrit I can work on an unabridged translation of the Rig Veda myself...