I have been trying to get this to work for days, but I can't figure it out.
This is not possible because that would violate against the following terms of the MobTalker2 License:
You may not include alpha or beta versions of this mod in any mod pack - public or private.
Alpha and beta versions are inherent unstable and contain bugs. Including those in mod packs could cause serve problems for the user. It also protects the developers from false bug reports caused by compatibility issues.
As there aren't any release versions (aka non-alpha and non-beta) yet, this mod may not be included in any mod pack.
Please follow the installation instructions which are presented on the MobTalker2 Downloads wiki page.
If you are somehow unable to install MobTalker2 correctly, feel free to use the Support and Suggestions forum to ask for support. This is a bug tracker and as such it should be used for bugs, feature proposals and enhancements for existing features only.