28/11/2024 UPDATE: - The Final Update.
So after 3 months, I can say for sure that I finally Now know how to Compile Models using Studiomdl. I've learned that "./" Should be specified for compling models in any Directory whereas "valve/models/*modelname*.mdl" seems to be for compiling models for the Main Half-Life Directory. (However, For my E3 Mod, I'd created a Duplicate valve Directory under my Model Source Directory to preserve the Original File paths in the .qc files while using Absolute Zero's .bat files to compile the Models Automatically)
Anyways, i tried another Attempt using Crowbar for compiling (The Studiomdl.exe is from the Absolute Zero Developer Drive's Old Compilers Directory [There's a file saying it's the Seven Co-Op Game's version which seems to be what everyone uses]) using the Directions mentioned here: - https://www.the303.org/tutorials/gold_mdl_comp.htm but i still keep getting errors when i tried to compile.
So, First off Back in the Above Post, i was using 3Ds Max 8 with Cannonfodder's SMD Exporter but i mentioned that it wouldn't Complie, Well it turns out that one reason for why it wouldn't Complie was because it was the wrong SMD Format, Cannonfodder's Exporter was exporting the Files to Half-Life 2's SMD Format which uses "ValveBiped" instead of the "BoneXX" System Which HL1 Uses, So therefore when studiomdl\Cowbar tried to compile, it was trying to find "BoneXX" But it founded "ValveBiped" So therefore it wouldn't Compile as intended.
As for the Situation regarding 3Ds Max, It would seem that As I Said above, I was using an Incorrect Exporter (Which I put down to being a HL2 smd format one). But in the Months following, It now seems that the Exporter was exporting regular 3ds Max bones instead of HL1 format ones (Which seems to be what the .vph files seem to be used for). Anyways I did eventually find an Unpacked Version of Max V1.2 via the Valve Cut Content Discord which only needed to have the Sentinel Drivers to be installed (Which I found on an Third Party Website and Installed via the Custom Option so It was just the component needed for 3Ds Max to work) and Max V1.2 now works almost fine on my 64 Bit Windows 7 Rig (with the exception of an Error Popup saying ACDB.dll is missing whenever I launch the Software) and Was able to get most of the Meshes I needed for the E3 Mod.
With everything I've said, I'll close this as Solved, Expect no further correspondence from this Thread, This is my final epistle.
Yours in infinite finality,
~ NSWThomasFan.