Sprint HTC Touch Pro 2 - Missing Conference Call Button on Dialer..?

[JonnyOctagon]

I was using a T-Mobile HTC Touch Pro 2 for the past week and just recently received my Sprint TP2...

On the dialer on the Sprint TP2 there is no conference call button/slider on the bottom right as there was on the T-Mobile TP2.. Instead that button is the back button..

Whats going on? Are all Sprint TP2's this way? How can I get the conf button on my dialer?

Thanks.

[edit] I tried CMYLXGO's enhanced sprint dialer, which puts the button there, but the button is non-functional...

Also, as a side note, it seems the battery life on the Sprint TP2 is about 30% worse than the T-Mobile TP2.. Is this just a difference in CDMA and GSM?