The installer automatically selected the multiprocessor kernel for me, even though my PC has only a single processor. The installer should ask the user whether he wants the single- or multiprocessor kernel to be installed as the default.
The installer probes the motherboard of the machine to see whether it is SMP capable and then installs that as the default kernel. In addition, the installer creates a second lilo entry called "linux-up" which will boot the uniprocessor kernel. We are in the process of determining the feature set for the next release and will keep this suggestion in mind. Thanks.
The current behavior appears to be working well.