OpenCCSensors needs the latest version of forge to work, and if you want support for IC2 and buildcraft they both need to be the very latest versions.
Right now the cards we have are:
Inventory Sensor Card: Gives the name, damage value and stack size of any item in inventories within a 5x5x5 cube around the sensor. This doesnt just work for chests, but also works with most other machines
Proximity Sensor Card: This gives full details of any living entity (player or mob) within a 16 block radius of the sensor peripheral. It gives pretty much any detail available, such as what armor they're wearing, what their hunger level is, their location, their health.etc.
Dropped Item Sensor Card: This gives item name, size, damage value and whether or not it's burning for any dropped item within a 16 block radius of the sensor
Buildcraft Sensor Card: This currently monitors activity and heat levels of BC engines within a 5x5x5 cube around the sensor
Industrial Craft 2 Sensor Card: This card can monitor heat levels of reactors, storage levels of MFSUs and batboxes, as well as seeing how much power is passing through cables. This covers a 5x5x5 cube around the sensor
Sign Sensor Card: This can read any sign post within a 5x5x5 area around the sensor
Liquids Sensor Card: This can read the liquid levels of any entity that implements ITank (Buildcraft tanks, probably works with other mods too). Again, this is a 5x5x5 around the sensor
World Sensor Card: This can give basic information about the current world (Light levels, whether it's raining or not.etc.)
Please note that we've purposely avoided certain things to keep the balance with other mods.
The best way to show off what can be done using this mod is with videos:
EDIT: I'm going to try this out. :3. I've never used CC before, so this will be interesting.
Sorry! I tried to break it up a bit!
Good luck. ComputerCraft can be tricky to deal with without knowing Lua scripting, but you should be able to get the sensorview program working with little trouble if you follow the second video I posted