Use the following steps to move your up.time datastore to a different directory:

Windows: 
> net stop "up.time Data Collector" 
> net stop "up.time Data Store"

Linux or Solaris: 
# /etc/init.d/uptime_core stop 
# /etc/init.d/uptime_datastore stop
datadir="C:/Program Files//uptime software/uptime/datastore/data/"