> IB_Query1.ParamByName('SomeDate').AsDate:=strtodate(Edit1.Text);

Rather than use a parameter I have a routine in IB_Utils or IB_Parse that
takes a TDateTime input and returns a string that the interbase parser will
recognize. This allows the client's date format to be converted to the
server format.

It's called something like getIBDateLiteral

HTH,
Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com