Here is a list of all topics with brief descriptions:

High Level Routines	These are routines that can be used without having to muck around in the internals
Image Finding	Routines for finding and characterizing images
Lens Manipulation	Routines for adjusting the lens
Lens Fitting	Routines for fitting a lens to observations
Image Processing	These routines are used for putting images into pixels, simulating PSF smoothing and noise, fitting profiles etc
Mid Level Routines	These are routines that might be used by a user
Constructors and Destructors	Routines for initializing and freeing the data types. These have not yet been moved to C++ form. They a left over from C
Image Finding	Routines for finding and characterizing images
Deflection Solver	Routines for calculating the deflection of a ray
Lens Fitting	Routines for fitting a lens to observations
Image Processing	These routines are used for putting images into pixels, simulating PSF smoothing and noise, fitting profiles etc
Low Level Routines	These are routines that should never really be used by a user
Cosmology Library	Library for calculating all things cosmological (distances, power spectra, mass function, etc.)
Utilities	Useful general purpose utilities
Functions	Global functions. They are not all documented