Complex sentence: In 1991 the organization moved its central location to Gainesville, Florida under the presidency of Dick Lattimer, and in 1997, with the debut of the AMO Archery Trade Show, the companies' donations were replaced by the profits generated by this event.
Split into simpler sentences: In 1991 the organization moved its central location to Gainesville, Florida under the presidency of Dick Lattimer. In 1997, with the debut of the AMO Archery Trade Show, the funding formerly provided by companies' donations was replaced by the profits generated from this event.