Hi Guys,
I will my best to help and keep it simple.
The best option if anyone is having any difficulty is at the screen shown to chose either the first or last option and let the installer do its thing.
Ignore the Reloaded thing for the moment.
1. If you already have FPSC classic installed then choose either of the first or last options.
Note : If you don't want to actually use the models packs in FPSC Classic at all then its probably best if you choose the last option to install as stand alone package. Either way if you install to FPSC classic as the installer does by default then after it installs you can simply copy any files you can actually use in Reloaded such as the entities Bank files and copy the whole model pack entities folder from the Classic folders to the Reloaded entity bank folder.
If you are unused to the processes I would suggest the following method.
2. If you will only be using the model packs inside Reloaded then you can actually install (unzip) the model packs to a folder anywhere on your computer. It does not matter which. You do not need the installer file inside your Reloaded or Classic folder itself to start with.
When running the installer for use with Reloaded choose the third option "Stand Alone" and install to any folder you like on your computer e.g. make a folder in my documents if you like called model packs - then inside that make one with the model pack name and install the pack to it so you know where it will be found. Now simply copy the files you want from the folder you installed to - to the appropriate Reloaded folder and they will be ready for your use as with any default Reloaded models.
Bear in mind as has been said only entities are actually usable as being set up ready to go with model files, texture and .fpe script file all in situ ready to use in Reloaded. Remember too that the .fpe files may differ somewhat from Reloaded entity .fpe files so if any of your new entities don't quite work right you may have to update the entities .fpe file with the same format as the Reloaded ones. Most should work fine out of the box as the saying goes.
Not sure if thats of any help but its the simplest explanation I can suggest.
In Summary : Its really not difficult - just install anywhere really as long as you actually know where you are installing and then copy any files (e.g. whole entity directory) you need from where you installed the model pack into the correct Reloaded matching Directory. i.e. entities directories go into : C:\Program Files (x86)\The Game Creators\FPS Creator Reloaded\Files\entitybank
You can just just copy a whole Model Pack entity folder from any place on your computer and paste in into the Reloaded entitybank folder and you are away.