I'm currently creating a shelterbox'box in blender 2.6, but I need some suggestion on how to build it.
Right now I'm totally lost.
Please follow the link to see the image:
Well I'm not entirely sure what you want it to do, but if you mean just modeling it, i suggest that you use this and a few other pictures (front and side) and use that as a reference as you model your box.
You can split your view into front and side to help you get a feel as you work on it making it as close as you can, I try not to go for perfect if i can otherwise it takes away from the rest of the project, you can always to back if you need to and change it.
if you mean for a game, I recommend looking into inventory tutorials on youtube, I have not had the chance to do this just yet so i can't offer much help at that.
If it is for a game you could make it so your character finds it and clicks on it opening an inventory, to pull the tent out (maybe use a cut scene of them making the tent)
The tent and the other stuff would also have to be modeled as well.
I hope this helps some at least