I had no problem with the install from floppy disk, choosing the defaults when I was not sure what to do. This will give you a minimal setup so you can use both Win98 and Linux. It may take a while to figure out how to use the Linux communication software to connect to the Internet. Instead, one can use the already installed Win98 communication software. By mounting the dos partition via Linux, one can copy the downloaded software to a Linux partition.
Some packages depend on other packages being installed first.
To see the list of installed packages, use the command 'dpkg -l'. If there is a dependency problem, dpkg will tell you which packages are needed. Go and get those packages, install them, and then install the package you want.