Depending on the frag and what the zoa is attached to(more often then not, they are attached to a small rubble rock glued to a frag plug), I usually pop them off the plug and glue to my rock. If they are growing on the plug and not a small rubble rock, I just cut the end of the plug off and glue the top of the plug to the rock.
Any new coral always goes in my sandbed in a low flow area to get acclimated to my tank. After a few days to a week(depending on how lazy I feel that week) I start moving them around to find where they like it best. Within a few hours of moving them you can usually tell if they like it where they are placed.
You know clown, its kinda of funny how we both started the exact same tank basically the same exact way, at nearly the same exact time, with nearly the exact same equipment, but now 5 months later our tanks have taken a drastic turn in different directions.