How to add Latex packages from CTAN

Hello,

I need to use a package called "changepage" in my SWP document. Previously with V5.5, I can easily add it by copying to the folder "\swp55\TCITeX\TeX\LaTeX\contrib". Could anyone kindly let me know how to do that with V6?

Also, when SWP V6 failed to compile the PDF file when I clicked "PDF Preview" tab, I could not see the error log. May I know how to find the log window so that I will be able to know what is wrong?

Thanks a lot!