The seller told me that the dress does indeed have a Tonner label sewn into the back seam and this label indicates the doll/dress was made in 2000. The box style and box label style are consistent with that "era".
There is no evidence that this was an event doll or special club doll. Instead it appears this was a prototype for a doll that was never issued.
Andria has added this doll to the "Event Dolls, Specials, and OOAKs" page.
If you look at the identification numbers on the dolls and outfits issued in 2000, there are a couple of gaps in the sequence of numbering. In the Ann Estelle dressed dolls there are dolls numbered 20601-20603, 20605, and 20607-20610: In other words there are no dolls numbered 20604 or 20606. UPDATE 06.16.13 - Andria and I are editing the doll and outfit ID pages and in doing so I've "discovered" that 20604 and 20606 are numbers of dolls that were continued from the 1999 line. So squash the theory below about the missing matching outfit!! The Sophie dolls show no gaps. And the Georgia dolls are numbered 20630 and 20632 -- no doll numbered 20631. So far, this appears to remain true, that there is no 20631. There are no gaps in the "outfit onlys". (And yes, I realize that a number not seen at the end of a sequence might also qualify as a "gap".) So my own private, unsubstantiated theory is that this "Life Has No Blessing ...." doll was what might have been [20604, 20606 no] or 20631. Taking this a bit farther, I'm thinking that perhaps since the girl in the Engelbreit illustration wearing this dress has darker skin, that this outfit was developed to go on Georgia and be number 20631. And taking this line of thinking even farther ..... maybe one of the gaps in the Ann Estelle numbering was for a doll dressed in the other outfit in the illustration??!! No. Wouldn't that have been fun?? Yes!
Thanks again to the eBay seller for sharing the photos and information. But boy, I wish I'd won this doll!!! (Oops, I guess that tells you which one of us bid.) Sigh. R.