Hi! I have a problem. Changes I made in the construction doesn't appear in the game. Here's what I do step for step:

1. I open the construction set.
2. I open the Oblivion.esm files
3. I start building and place a bedroll and a campfire in the imperial market district.
4. I click save.
5. I exit the construction set program.
6. I start the game ( elder scrolls 4 Oblivion)
7. A menu appears on the screen and I click on data-files.
8. I select my plugin.
9. I start the game go to the ICmarketdistrict and then find out that my creation isn't there.
NOTE: I didn't selected any other mod at that time, only the Renguardoverhaul mod that deals with guard's behaviour

Is your game patched ?? -- mods made with the new version of the CS will not show up in unpatched games ! (either patch your game or use the old version of the CS - Best option is to patch your game since mods made by others will not work if you don't)

Thanks, I think that's the problem. Often other people's mods don't work either.