Aurelien has upgraded lm_sensors to the 2.8 series. In the operation, the i2c package was dropped and the lm_sensors package does not include kernel modules any longer, as they are included in the 2.6 kernel.
Kernel 2.4 users are invited to apply the procedure described in the following installation guide for I2C and LM Sensors: http://www.ensicaen.ismra.fr/~delvare/devel/i2c/