1. OTS = Open Theme Standard. There are two of them (OTS and OTS2). They are standards for configuration so that themes can work well w/o being separate LS installs unto themselves.
2. NetLoadModule downloads modules using the connection settings of IE, IIRC. If you've got to use a socks proxy or something, it won't work. If IE is not allowed out, I don't think it works, either.