The Trio-Music shop was a simple all-in-one mailorder form for selling T-shirts and the vinyl records released via Tilt-Recordings. Aside from it, there were (are?) other sources for most of the Tilt-Recordings vinyl releases:
www.nylvi.com/tiltrecordings
www.discogs.com/sell/list?label=Tilt-Recordings&sort=price%2Casc
www.digalittledeeper.org/advanced_search_result.php?keywords=tilt0&search_in_description=1
http://h-a-b.org/index.php?style=quicksearch&whichparam=recordlabel&recordlabel=Tilt
www.redeyerecords.co.uk/asp/search.asp?recor=1&keywords=tilt
www.juno.co.uk/labels/Tilt/vinyl
www.chemical-records.co.uk/sc/search?SX=&ND=-1&Sort=NI&Lab=Tilt+Records
www.breakbeatscience.com/scan/se=Tilt/mp=label.html
More recent information can be found on the label homepage: www.tilt-recordings.com

Links to digital shops for mp3s / wav files and other digital formats of the Tilt-Recordings releases as well as the digital-only releases on T-Files and T3K can each be found here:
Labels / Tilt-Recordings
Labels / T-Files
Labels / T3K