If lvl 4 missions are your thing you should be looking at Questor. If you want to use evebot for missions you really need to move to trunk, but that is not an easy proposition if you are not already very familiar with evebot scripts. The biggest hurdle to getting a feel for the tagged version of trunk is that all of the 64 bit ID comparisons are broken and need to switch to .Equal[] evaluations. Once you do that getting missions up and running is just a matter of tweaking.
If I'm not mistaken (I don't use it for missions), trunk already has fairly complete mission code in place, and a good database of pre-scripted missions to boot.