Well I found this interview and I have attached part of it here...
A lot of commotion has been made by Conan and Howard fans alike about the way the Conan stories have been altered and expurgated in the past. Is the text of the stories pure, meaning exactly as it originally appeared in the 1930's pulp magazine, Weird Tales -- errors, inconsistencies and all?
SJ: Yes, pretty much so. This was something which Orion and I agreed on from the day we first discussed the project: these books would contain Howard's Conan, and only Howard's Conan. As good as some of the pastiches have been over the years, none of them could match up to the original. We wanted to introduce a new generation of fantasy fans brought up on other writers' interpretations of the character to experience Howard's original and, in my opinion, superior version of Conan.
However, as I said before, these books are aimed at the mass-market readership. They don't care whether Farnsworth Wright changed a comma to a semi-colon (and, to be honest, neither do I). Therefore, so far as the Howard "purists" may be concerned, these volumes have been "edited" to some degree, but we have retained the original American spellings where appropriate. We also corrected a few errors and inconsistencies, although I'm sure that given the quality of some of the material we were working from, the occasional new typo has slipped through. This is unfortunately the nature of mass-market publishing.
So apparently, yes these are from Weird Tales however they are not verbatim. They have been edited so I guess unless you are a Howard purist (which I am only for research.. the same goes for Lovecraft) the text is the same.....