Skinny,
To launch a webpage from a text box, create a callback for it, and on EVENT_LEFT_CLICK you can run the following command
/*Launch IE with www.mywebpage.com open*/
LaunchExecutable ("Explorer.exe http://www.mywebpage.com");
To set the color of the textbox try,
/*Programatically set your textbox text colors to blue*/
SetCtrlAttribute (thisPanel, PANEL_TEXTBOX, ATTR_TEXT_COLOR, VAL_BLUE);