Use the "-r" flag for a recursive grab. If you want to resume a previous one, add the "-N" flag. If you want to skip the directory structure you can use the "-nd" and "-np" flags.
eg:
Code:
wget -r -N -nd -np http://www.slackware.org.uk/msb/14.1/1.8/x86_64/base
This will dump the files into your CWD, so just cd into the directory before running it to dump the files there.