HaloMods "Classic" Read-only Archive

This has most likely been posted x amount of times, and I'm prbably in the wrong forum, but I have a question. See, I decided to do one of those crazy perfect map conversions, but I'm too stupid to know what I'm doing and I followed the tutorial. I just swapped b40_a with b40_c (the map I'd like to make multiplayer) and did all of the rest. Now I can't open it in sparkedit. Any ideas? I'd really like to see that final large room become multiplayer.

if you know if its been asked x amount of times then just search it,

but you have to do some hex, i forget what it is exactly, just search it

Arg. Thanks, hexing is a bitch, but at least I know what to do now.