Bukkit

Hi, I am sorry if this is a kind of noob question to ask, but I am completely new to bukkit and I just downloaded it to use Traincarts, yet I seem to have some difficulties.I have managed to enable traincarts without any major problem"[Train_Carts] Enabling Train_Carts v1.73.0
[22:53:38 INFO]: [Train_Carts] 4 Trains have been loaded in 2 worlds. (6 Minecarts)
[22:53:38 INFO]: [Train_Carts] 0 detector rail regions loaded covering 0 blocks
[22:53:38 INFO]: [Train_Carts] Restoring trains and loading nearby chunks...
[22:53:38 INFO]: Train_Carts version 1.73.0 enabled! (0.446s)
[22:53:38 INFO]: [TCActionBlocks] Enabling TCActionBlocks v1.2"When I link carts inside the game I have no problems and I can set properties like destination when I click on it and I edit it using the command prompt. The problem comes when I try to use the signs, I put a sign under on the block that has the rail and write for example "[train] destroy" and there is no "You built a destructor" message or anything and when the train passes by it just goes through like nothing happened, even if it is powered by redstone or using [!train] instead. I have tried all the combinations I could find (putting the sing under the block, putting the sign on the other side or facing another direction, using [cart] instead of [train], etc.) but I can't seem to get it working, I think I might be missing something very important I can't find yet... I have tried the permissions for both op and all players with 'true' and I even installed the Action Blocks plugin to test a station, which worked perfectly but leaves me without many resources for using Traincarts... I don't know if anyone could help me telling me what am I doing wrong.Thank YouMinecraft installed version: 1.7.5
Bukkit server version: 1.7.2-R0.4 (have tried R0.3 and R0.2 as well)
Traincarts: 1.73 (for 1.7.2-R0.2)
BKCommonLib v1.57 (for 1.7.2-R0.2)

I have exactly the same

What other plugins do you have running on your server?

Run the "plugins" in your console and paste the output here.

The same thing has happened to me? Does anyone know how to solve this problem?