you can call T-mobile to walk you through the steps it worked for me just fine.  You first have to have the total internet plan for your phone.  I believe it's an additional $19.99 to your plan, if you have just t-zones it will not work.  You can take t-zones off and replace it with the total inernet. Here is what I did , if it does no work for you call T-mobile and ask for teck support and tell them you have a cell phone that is not from T-mobile.  They are very much familiar with the CECT P168 they can help you. But for now try this:

goto ENTERTAINMENT menu - click on SERVICES - click on DATA ACCOUNT         - click on

GPRS- stroll down to an empty account - ACCOUNT 09- click on ACCOUNT NAME- rename it to

T-MOBILE- under APN type INTERNET2.VOICESTREAM.COM- leave the USERNAME and

PASSWORD blank (do not put anything there). - under AUTH TYPE select NORMAL.  then SAVE.

NEXT:

go to ENTERTAINMENT menu - click on SERVICES- click on WAP - click on SETTINGS-  click

on EDIT PROFILE- select an empty profile ( LIKE PROFILE 8)- click OK-  click on EDIT

PROFILE - RENAME PROFILE to TMOBILE INTERNET - HOME PAGE is HTTP:/WWW.T-

MOBILE.COM- DATA ACCOUNT is T-MOBILE- CONNECTION TYPE is HTTP- leave USERNAME and PASSWORD blank. click BACK- then ACTIVATE PROFILE

                                                       FOR PICTURE MESSAGES

goto PIM menu-  click on MESSAGES- click on MMS- goto MESSAGE SETTINGS- click on

SERVER PROFILE- goto an empty profile click ok - click EDIT PROFILE- RENAME

PROFILE to T-MOBILE MMS- HOMEPAGE is http://  216.155.174.84/SERVLETS/MMS

(all together no spaces)

DATA ACCOUNT is T-MOBILE WAP- CONNECTION TYPE is HTTP- USERNAME and

PASSWORD leave blank- click back and ACTIVATE PROFILE.

If that do not work you can also call t-mobile and they can send a file straight to your phone for the

MMS to work. other wise this should have worked just fine for you.  Good Luck!