There isn't any 1.5.2 version of RP2; You can't add it "manually". Until the mod author herself wants to update it, you won't be able to get it through any means. However, as PhantomRage pointed out, there is an alternative.Ok, but is there anyway to add it in manually?
If it wasn't clear enough: RedPower effectively no longer exists. The modding community has moved on and filled in the void RP2 left when development stalled. All of RP2's features are now handled by other mods, with the exception of Blutricity which no-one will miss anyway.
And thats the very least of it.
Not forbidden.Well, jakj isn't on best terms with the FTB staff, but the mod is still great.
I wanted to provide information about mods that replace RP2 features and Redstone in Motion replaces RP2 Frames pretty well.
Is it forbidden to mention the mod?