You talking about google talk? If so, pick the page you want the app to be on then press and hold and select short cuts, then applications and then talk. That will put the app on that screen, then ya just clicik on the app.

 

^

"Talk" (which I believe comes pre-installed on the Droid) is the same thing as Gmail chat. You can find it with the rest of your apps on the pull up menu.

 

You would think they could provide a way for all txt to be fwd into gchat or visa versa out of gchat to your sms client. I also wish they had a gchat widget. I would use this for my txt instead of Handcent if they did this.