justify text align

Hello, How can i have text align : justify under the picture when i chose extract article? <br>Uploaded with ImageShack.us I made this on my article, and it's work, but not in the home page on the extract. My blog www.enjoymusic.fr And another question : if i want to upgrade on catch box pro, i will need to rewrite some stuff i had created? (widget, social links, image in the header...) or i will find my website exactly like the catch box free with new features? thanks a lot!!