Help downloading Minecraft mod, Millenaire?

I haven't played Millenaire in ages, and just now, I wanted to get the latest version. I downloaded the installer, read the read-me, and I've done all it says! It won't detect Minecraft forge! I installed it manually, and the installer won't detect it, and I can't install it!

EDIT: I downloaded the.jar, and installed Forge through that, how would that effect it?!

Added (1). Manual Installation
To install the mod, follow these steps:
1.Download forge (latest version for 1.7.2) from the official site. Pretty straight forward installation.
2. Download millenaire 5.2 (1.7.2 minecraft) from the official page.
3. Open the millenaire.zip file in your downloads.
4. Go to the folder 'Put in mods folder' within the millenaire file.
5. Copy and paste the three things inside to your mods folder (in.minecraft)

I've done this and NO RESULTS!

Problem solved, I had to run the version using the appropriate Forge I installed, I will leave this open so people with the same error can fix for themselves!