Sox for Foobar2000 can be found here:http://www.hydrogenaudio.org/forums/index.php?showtopic=67373
What issues are you having with the foobar live show tagger? I've had a few solutions over time.
1) if it's pulling the wrong text file (sometimes I've had it pull ffp info in), try renaming the wrong file to exclude the txt extension.
2) If it's pulling artist and venue info but not track names, it could be that the tracks aren't numbered in the text file. Live show tagger needs to have track numbers next to each song, if track numbers aren't included, try adding them.
3) If it's pulling info correctly, but all tracks are labeled with the track info for the first cut, you need to assign track numbering to each of the tracks, this can be done by running the auto track number script under the tagging options.
Finally, since live show tracker doesn't put the venue info into the album field (and none of the players I've used recognize the custom field it creates, my last step is to select all freshly tagged shows, and copy the venue info tag into the album tag. I also amend the venue info to best suit my needs -- i.e. I'd change "Paramount Theater, Portland, OR" to "1992-12-15 Paramount Theater, Portlant, OR - FOB mk4"
Semi off-topic, but feel free to follow-up with questions.