Paste this into the init method of your form and it will receive focus :-

declare integer FindWindow in USER32.dll integer, string
declare integer SetForegroundWindow in User32.dll Integer
WindowTitle=chr(34)+alltrim(thisform.caption)+chr(34)
winHandle = FindWindow(0,&WindowTitle)
if winHandle > 0
SetForegroundWindow(winHandle)
endif

Regards
Steve