I bought the book "Customizing Xoops　カスタマイジング・ズープス" last week, in page85~88, integrate the theme_blockleft.html, theme_blockright.html, theme_blockcenter_c.html, theme_blockcenter_l.html, theme_blockcenter_r.html into theme.html, then keep theme.html only and delete other 5 flles.

I followed it and uploaded the "sample" theme, after loading this theme, my site became totally empty! I am sure that I do have followed the instructions because it just needs to copy and paste, please tell me what's wrong with it, thank you very much.

p.s. my sample theme
http://lawrence.nccu.googlepages.com/sample.zip