This would help u out. i uploaded the latest reliable torrents for you. The attached files are torrents for installation,

Mathematica 8.torrent - 4shared.com - online file sharing and storage - download

Title: Mathematica 8
Installation Notes:
1. Run and install Mathematica_8.0.0_WIN_MachineSpecific.exe
2. Run the installed program. It will give you the activation screen.
3. Click "Other ways to activate"
4. Go to Manual Activation
5. From the folder named 'Crack', run math40.exe, and enter the Math ID the manual activation screen gives you into the European Math ID box
6. Choose Style: 23 and click Generate
7. Paste the license into the box labeled "Activation Key"
8. Paste the generated password into the box labeled "Password"
9. Skip online registration
10. If you enjoy the software, show your support by buying it!
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Mathworks.Matlab.R2011b.ISO-TBE.torrent - 4shared.com - online file sharing and storage - download

Mathworks Matlab R2011b
Installation Notes:

1) unpack
2) burn / mount
3) install
4) crack dir
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Take cares ..