He was not "misquoting" himself, he was paraphrasing for God's sake. Do you expect him to have a photographic memory?
Here is what he said in March of '09 (if we can trust the BBC)
HIV/Aids was, he argued, "a tragedy that cannot be overcome by money alone, that cannot be overcome through the distribution of condoms, which can even increase the problem".
So HIV cannot be overcome by the distribution of condoms which CAN even increase the problem.
Pouring more money into the distribution of condoms can increase the problem of HIV because it sends the message that high risk behavior is "safe" as long as you use one. As we all know it doesn't protect against HIV 100%, plus people don't use them "properly", especially in the 3rd world. Yet this false security can INCREASE high risk behavior and thus exacerbate the problem.
Again this is all discussion of objective exterior acts and practical discussion of HIV prevention/ exacerbation.
The Pope's later comments to Seewald refer to an INTERIOR SUBJECTIVE INTENTION which may develop whereby it may dawn on a habitual sinner, the inkling that it is a good thing to protect another human being from infection.
Of course, you are free to disagree with this opinion of the Pope since it is a private opinion. However it is not in contradiction to what he said before and nothing he said, as the CDF points out, changes the Catholic teaching on condom use.