I believe the first Caucus Race has not been scanned and translated, however, you may download Caucus Race 2 in the link below:
A note: 3 of the stories for caucus race 1 as well as all the illustrations/sidestories for CC1 and CC2 have been translated. They can all be found on the PH livejournal comm under the novels tag or the official good masterlist, you'll likely have to be a member to see them. Don't forget to thank the translators/scanators, it takes alot of effort and time to do these :). Currently 1 of the CC1 (Pink Curse) and all of the CC2 main stories have not been translated.