Again, if you followed directions, there should be only 2 files in /Users/cfmx/Public/Drop Box:
cfmxdnld.bin 115 MB
cfmxinst.bin 100 MB
These are the compressed files. You can delete them , once you have a successful install (see below).
If you have hundreds of subdirectories and files in /Users/cfmx/Public/Drop Box, then you made a mistake in the install procedure -- you decompressed the cfmxinst.bin file to the wrong place. (pretty easy to fix)
Delete the folder labeled opt within /Users/cfmx/Public/Drop Box.
Resume the installation procedure at Page 10, Install ColdFusion MX on Mac OS X.
Take care to do step 3 -- this will cause the opt folder to be created at the root file level (your hard disk) rather than within /Users/cfmx/Public/Drop Box.
If you still have problems, email me directly!