IBM Lotus Notes 8.0.2 FP1

I am trying to install IBM Lotus Notes 8.0.2 FP1 (C1WS2EN is the file I downloaded)on my laptop

and I get this error

Setting “HOTFIXTEXT” to “Error - version mismatch. Expected to find version: “20080809.0430”, found version(s): “”.”

I have windows Vista Business with service pack 1 installed

any ideas ?

Thanks in advance