There you can find there scipts to spots in b2,b3,b4. B1 is too close, so you can do it by yourself :P
Enjoy.
File:
Code:
http://depositfiles.com/files/3afdvfm1n
Code:
http://www.virustotal.com/file-scan/report.html?id=a2d2c32df1f94242ccf6a82f152b35b264bb892d0380b0d4c3cef289146b1f20-1287838658






