I allowed Application Loader to delete the two programs, Plumber and Sokaban, when I ran it. I then tried to use Application Loader to install the files by using the "Add/Remove Applications" portion of Application Loader. I had to use the "Browse..." option to find the programs. It found the .alx files, but when I selected them, Applications Loader responded with "no additional applications designed for your device were found
I searched the internet for a solution and all the sites said that I needed the current version of DM. I verified that I already had the current version. Also, I have successfully used DM to install other programs previously.
On a whim, I tried the "Update Applications" portion of Application Loader and... it found both of the programs automatically! No browsing to the directory to find it!
I continued with the "update" and it successfully installed both programs. The programs are now on the Applications List on my BB and Applications Loader no longer tries to delete them.
So, if any of you are getting the "no additional applications..." message when trying to install applications, try using "Update Applications" instead of "Add/Remove Applications". I don't guarantee it will work, but it's worth a try.