At this time you have several text functions that might be able to help with this. To see all of them, click the FX between the property and the function bar at the top of the screen. The ones I use the most are Left(), Mid(), and Right() and Trim(). If I wanted to split a text box called "FullNameBox" with the First and Last Name separated by a space, I would use the following two functions:
FullNameBox contains: "Audrie Gordon"
First Name: Left(FullNameBox.Text,Find(" ",FullNameBox.Text))
Last Name: Right(FullNameBox.Text,Find(" ",FullNameBox.Text))