Need 5 cron jobs set, and some .php files edited with the correct DB info by gilesy

This job is using plesk 10 on a linux VPS server. It also require some wordpress knowledge. I have set 5 cron jobs, and they appear to be correct, but I am receiving mails saying that they failed – “Could not open input file:” I need those cron jobs fixed, very simple task… (Budget: $2-$8 USD, Jobs: Linux, MySQL, PHP, Plesk, WordPress)