it's very odd that they are not showing.
I would reinstall DFX. AFTER YOU SAVE YOUR MAPS TO A SAFE PLACE!
after you have a fresh clean directory, open the Novalogic folder in "program files". Right click on the DFX directory and click copy.
then right click somewhere in the Novalogic folder and paste it. after it is done copying, rename it to something like 'DFX SO MOD'.
then just install the SO mod into the new directory.
I would check to see if the SAM launchers are back in the STOCK DFX game before I update. Then check after you update. if they are not there then you know it's the update causing your problems.