Simply copy or update the new Exe's overwriting the exising ones as they are released..
Place the EntityWelder.exe ( Drag & Drop version ) into its own folder.
After updating you may need to repath to the Fpsc Creator and GameGuru folders

Please ensure tools are named exactly although they usually are the same by default

Entity Welder.exe
Entity Welder_Win.exe
fpetobat.exe
SegAutoWelder.exe
WeaponWelder.exe

In the "Drag & Drop" folder
EntityWelder.exe ( note this is the Drag and drop version of the same tool )