It'll be one of your rc.d files (depends of wether you boot to X or not).
In the correct run level make a snnhttpd and snnmysql that call those programs. (where nn is the order that they start in). If you boot into X these should go in run level 5 (rc5.d) or into 3 if you don't (That's for Mandrake, I know some distros are different). Or put the scripts you call into /etc/rc.d/init.d/ and link them to the right run level.
have a look in /etc/rc.d/rc5.d at some of the other things that get called at boot.