i'm preparing to do my first ortho-phos/espsom salt/oliveoil cleanse.--so i've been researching cleanse protocols a lot lately.
I do see on http://www.kitchendoctor.com a flush that doesn't involve ortho-phos. They utilize an herbal product called Stone Free by Planetary Herbs. Ingrid Naiman(kitchendoctor.com)does propose using the olive oil part of cleansing.
Planetary Herbs homesite: http://www.planetherbs.com
product link: http://planetherbs.com/estore/display.php?RecordID=1129592136
One thing you may want to look into is that you may not be doing a thorough enough cleanse - may need to incorporate homeopathy - Theresa Dale,N.D. invented an 11-day cleanse that incorporates herbals & homeopathics & ortho-phos. Her website is: http://www.wellnesscenter.net
The EveryDay Detox product mentioned earlier looks interesting.
Well, good luck