THX

http://support.ea.com/cgi-bin/ea.cfg/php/enduser/std_adp.php?p_faqid=17573&p_created=1190311533&p_sid=RP2gjUyj&p_accessibility=0&p_redirect=&p_lva=14245&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NDYsNDYmcF9wcm9kcz0zNDQ4LDM1MjUmcF9jYXRzPTAmcF9wdj0yLjM1MjUmcF9jdj0mcF9wYWdlPTI*&p_li=&p_topview=1

Go to the Evenbalance Punkbuster update download page and save the security file pbsec.htm and the latest Player Client file for Win32 (and Mac Cider version) to your desktop. Then follow the instructions below:

1. On the finder menu click Go and click applications.
2. Right Click on the BF2142 icon and select Show Package contents.
3. Double click on Contents.
4. Double Click on Resources.
5. Right Click on the BF2142 Application and select Show package contents.
6. Double click on Contents.
7. Double Click on Resources.
8. Double click on Transgaming.
9. Double Click on c_drive.
10. Double Click on Program files.
11. Double Click on Electronic Arts.
12. Double Click on Battlfield 2142.
13. Double Click on PB.
14. Copy the file pbsec.htm in the PB folder.
15. Double click the htm folder.
16. Copy the PB Client file into the htm folder.

This will manually update Punkbuster on your system.