sure, no problems!

general tactics: this small force has 3 distinct elements to it:
1) the hammer unit. This is the large unit of guts and I place the bruiser in here. I give him HA and GW in order to pack as much punch as possible for a small amount of points. He has a thiefstone to grant protection to my hammer unit in case anyone fields a mage (and my opponents generally have a lvl2 mage at this point level) MR1 can be a nic suprise for them. The bruiser also goes in here to bring it to 5 members and therefore to be more resilient to panic. the enemy still has to randomize shots against it too

2) the flanking/sacraficial unit. the bulls in this case. this unit moves ahead of teh guts to try and bit charges, or position itself for a flank charge. Against shooty opponents, it becomes a meat shield to ensure the guts hit the enemy lines intact.
3) the wildcard unit. The Trappers!

The trappers are in for down and dirty work - and will be doing any odd jobs that come up (war macnine hunting, LoS blocking, march blocking, flank charging, annoyings things with sharp stuff, etc.) They are the only unit with any tactical flexability at 500 points under normal rules (no gut magic...grr...)
generally tactics are simple at this point level, but here goes:
a) point the bulls at the nastiest enemy unit and move them as fast as possible towards it
b) move the gutts/bruiser to support it, but also threaten the other units in the enemy army
c) have teh trappers annoy whereever they can get the most points back or cause the most aggrivation
d) have a good think about how to respond to enemy charges - fleeing is still a perfectly acceptable tatic with teh bulls or trappers, so you can pick your ground a little more easily. Its actally easier to set up bull charges in small games - look for the chances.
e) don't underestimate the psychological effect of having 8 ogres on the table - it can be more than you'd expect.
I've played a lot of games at 500 points, and only lost once (bad dice happen to everyone), and I believe that ogres can do very, very well. I will say though that he border patrol/warband rules are better for us as we can use a butcher under them - and the added advantages of just having a spell like trollguts in play are huge.