Zip files with problems?

Hello.
I'm having trouble trying to unzip Lacie nwsp1's fvdw sl 15 firmware.
Windows says it's an invalid Zip file. Mac says "Error 2 . No such file or directory".
I've tried the 5 part zip file but it seems to with a problem too: "Unexpected end of archive".
I've tried download yesterday and today.
Can anybody help me with this?
Thank you!
Cheers
Sérgio Rodrigues
I'm having trouble trying to unzip Lacie nwsp1's fvdw sl 15 firmware.
Windows says it's an invalid Zip file. Mac says "Error 2 . No such file or directory".
I've tried the 5 part zip file but it seems to with a problem too: "Unexpected end of archive".
I've tried download yesterday and today.
Can anybody help me with this?
Thank you!
Cheers
Sérgio Rodrigues