I just tested your file and received the following TAGs from the FLAC file (plus even the cover image):
Title=Don't You Go Up The Sky
ALBUM=Strange Fruits And Undiscovered Plants
ARTIST=DeWolff
GENRE=Psychedelic Rock
DATE=2009
TRACKNUMBER=03
The TAG_INFO looks like that after the call:
tags
{DeWolff - Don't You Go Up The Sky}
PictureCount: 0
album: "Strange Fruits And Undiscovered Plants"
albumartist: ""
artist: "DeWolff"
bitrate: 0
bpm: ""
channelinfo: {FLAC, 44100Hz, Stereo, 16bit}
comment: ""
composer: ""
conductor: ""
copyright: ""
disc: ""
duration: 0
encodedby: ""
energy: ""
filename: "C:\\Temp\\03 - Don't You Go Up The Sky\\03 - Don't You Go Up The Sky.flac"
genre: "Psychedelic Rock"
grouping: ""
isrc: ""
lyricist: ""
mood: ""
nativetags: Count = 0
pfrestrictions: ""
pictures: Count = 0
producer: ""
proppfrexx: null
publisher: ""
rating: ""
remixer: ""
replaygain_track_gain: -100
replaygain_track_peak: -1
style: ""
tagType: BASS_TAG_OGG
title: "Don't You Go Up The Sky"
track: "03"
year: "2009"
So to me all look good. Maybe you have not loaded the BASSFLAC add-on?