Most certainly. I will do my best to explain to you.
First off, go into File>Options... and click in the Grid Options tab.
There, into the line Skill Drawing Method, select the box saying Growing Center Box and change it to Text. That will change the representation of the aptitudes from the ambiguous and pretty damn hard to understand boxes to good old numbers, ranging from 0 to 18 in skills, 0 to 100 in aptitudes, and pretty much limitless in attributes.
Clicking on the name at the top of each column, and it shows a downard/upwards black arrow over it, it means all the citizens will be sorted by the best/worse number on that column. On the Labor and Military (for weapon skills, dodging and the such), it will, by default, sort based on the level of mastery with said skills, but if you right click the top of the column and set it from Level to Role Rating, then it will change from setting from mastery to role, which is decided by skill rating, attributes (physical and mental alike), personality, and tastes. At default, it may tell you that you have a level 9 and a level 7 blacksmiths, but sorting by roles, you might see that the level 7 one have a far better potential than the level 9, so always sort by roles, they don't fail.
Edit: Before embark, no caste or race related skill points will be assigned, so the Labor tab will be pretty much useless for referencing. For setting up, use the Role tab, as it is much easier to keep track of whoever is best at something, and the close second places to make sure you will make the best out of each job.
Setting your group via roles will increase its efficiency many, MANY times over, so it is definitely something to look over.
If my explanation wasn't clear enough, I will try searching a decent tutorial for you.
Now, a few more things related to the warlocks:
1 - They don't need alcohol, and I saw you picking lots of drinks. Each barrel can hold, if I remember correctly, 20 units of drink. So you will get one barrel by 2 pts by buying a single unit, as you will get one by 40 pts by buying 20 units. So, point wise, in the warlocks case, it is better to buy just a unit of each. You will be saving 8 pts in barrels, and they will be emptied rather soon.
2 - Your warlocks can't gain experience in any physical labor, and if I remember correctly, no weapons but wraithblades and staffs, as they are the only ones who can use them (or, at least, make use of their magical powers). They are pretty good weapons, with the blades capable of slowing down opponents while the staffs throw shale boulders at them. So, it might be a better idea to bring one of those magic weapons instead of the mundane, intended for skeletons and ghouls.
3 - Prisoners are dirt cheap and an AMAZING source of souls, bone, meat, and leather, specially the male orcs. Butchering a good number of your prisoners can allow you to start producing skeletons (and zombies with the left overs) quite early, so consider always to bring good numbers of them.
That's pretty much what I can tell you that you may not find in the forums already. Good start up strategies can be found in the Warlocks thread, as cutting stones in the gem cutter with your warlock (one of the few skills they can actually level up, and it is a rather important one) and storing souls via hunting (with a warlock or, preferentially, a ghoul, who is faster, expendable and will not throw a fit for being promoted to Overlord too early) to level up your skeletons via inscriptor asap so they can start producing high quality stuff real quick.
