You can use the following function to accomodate your requirement.
Code:
Public Sub ClickOnTextLocation()
l = -1
t = -1
r = -1
b = -1
rtn = SwfWindow("xyz").SwfObject("abc").GetTextLocation("pqr",l,t,r,b,True)
myX = SwfWindow("xyz").SwfObject("abc").GetROProperty("x")
myY = SwfWindow("xyz").SwfObject("abc").GetROProperty("y")
x= (l+r)/2
y=(t+b)/2
myX = myX + x
myY = myY + y
SwfWindow("xyz").Activate
Set dr = CreateObject("Mercury.DeviceReplay")
dr.MouseClick myX, myY, 0
End Sub