*Problem controlling what is sent to the FOH speakers*

Question

I use a Presonus Firestudio Project as my audio interface, and I have been having trouble sending different audio tracks to the correct places.
My overal goal is to send my bands intro, bass drops, inbetween song sampling, and outro to the front of house...
While sending audio tracks of our recordings (with click) to my headphones (I use Logic Pro 9 as my DAW).
After searching every online support discussion I could find...
I read that in order to send a click to just the drummer (me), and a separate backing track to the front of house you need to create 2 busses.
Send all the audio tracks you WANT the audience to hear (front of house) to Bus 1, and set the output to Stereo Out.
Next you are supposed to send everything you DONT want the audience to hear (click/recordings) to Bus 2, and set the output to 3-4.
Now this is where I get confused...
I have gone through on Logic Pro 9 and set all this up correctly (I think).
-First I set up an audio channel for everything I WANT the audience to hear (intro, bass drops, inbetween song samples, and outro).
I clicked 'send', and selected Bus 1 (On my logic mixer I made sure to select Stereo Out).
So at this point my Main Out (in the back of my Firestudio) is being sent to the front of house.
Next I created an audio channel for everything I DONT want the audience to hear (click/recordings) and clicked 'send' to Bus 2.
I selected Outputs 3-4.
From my Firestudio (in the back) outputs 3-4 are being routed to my personal mixer (Berhinger Xenyx 1202).
I plug my headphones into the 'phones' plug... and I hear all the tracks fine.
This is where the problem comes in.
*For some reason, all the tracks on Bus 2 keep playing through my Stereo Output!
*Although everything is set up to separate the tracks, every time I hit play both bus 1 and 2 are sent to my main output of my Firestudio!
I don't know if has something to do with the I/O Assignments (mine are set to default) or what... but I can't for the life of me get JUST the intros, bass drops, sampling, and outro to play through the FOH speakers. Instead it plays everything... even though the tracks I DONT want to be sent to the FOH are supposed to only go to Outputs 3-4.
Someone please take the time to read this post and help me out!
It has been a heavy burden for quite some time now.
Thank you for your time.

Answer 1

So I ended up going a different route to solve my problem, but thank you both kcstudio and seeren for providing useful information.
Here is what I ended up doing instead:
In Logic I created two audio tracks, one with my FOH mix (what essentially was my bus 1)
and another audio track with my personal headphone mix (bus 2).
Next I panned my FOH channel 100% Left, and my headphone channel 100% Right.
I bounced the file and saved it to my itunes, in my "Live Set" playlist.
From there I can simply download the playlist to my ipod, and connect to a stereo splitter cable.
Both L and R (Tip and Ring) outputs on the splitter cable go into my Berhinger mixer on seperate inputs (where I can EQ, and control volume).
On the physical mixer I pan my FOH mix 100% left, and my headphone mix 100% right.
Then I send it all through the main out of the mixer and to the house PA.
And everything works perfectly!
(The click track/recordings only play through my headphones, while the FOH mix can be heard by the audience)
*This makes for a faster setup on stage, and gives me control over the different levels*