HaloMods "Classic" Read-only Archive

Hello, I am fairly new to modding. I have downloaded HMT and .NET and I have the 56 F'ing Plugin pack. I was reading a tutorial and in the tutorial there was a step on editing the coll tag of MC. When I went into HMT and dblclicked the coll tag, nothing appeared on the editing window on HMT (the right side). Then I read how I needed to get a plugin to edit coll tags, but there was only a link to the files forum>PC Modding. I have been browsing the files forum for it and I cannot find it. Does anyone have it for download, or know where it is?

Thanks much,
Doctor