Mother Earth (the Brit jazz-rock ensemble, no relation to Joey Puyat's old band) was on the Acid-Jazz label, along with the Brand New Heavies. I used to see their albums on sale at Tower Records Makati (R.I.P.), but nowhere else since then. Have you tried the music section of Fully Booked in Bonifacio High Street? They have a lot of interesting CDs in their jazz section, I would not put it past them to have the old Acid Jazz catalog in stock.
I've also seen a 4-album collection on BitTorrent (but I'm not to supposed to tell you that, hmmm).