First of all php 4 or 5 (doesn't matter) it's all greek to me. However, I learned some new stuff about the differences between php 4 vs. 5. I was having some problems with some of the links on my site not working properly. I found out the reason for this was due to using php 4 instead of php 5. Who knew? Anyway, I had a helper switch some stuff in the back end of my site and wha-la! Now I am php 5 compatible. The best thing about it, now all my links work! A little error on my part, lot’s of reading to figure it out, one change on my site, and what a difference it has made.