Daniel Hertrich took over maintenance of the product in 2004 and has released version 2.0. Please download the archive and check the history file for the detailed information.
Here is what Andreas writes in the announcement as a description of PIM/LX:
I stopped using the built-in applications of the palmtop (ApptBook, PhoneBook, NoteTaker) and use PE.EXE and PIM.EXE to do all that those applications provide - and quite a bit more. PE.EXE is the core of all and is simply a new version of PalEdit, which supports PIM features. PIM.EXE is a program that is able to visualize your data in many ways.
This program is quite sophisticated and takes a bit of work to get used to. The rewards are rich! You can now manage large amounts of information of all sorts, many appointments, alarms, categorization of items and cross-referencing of data.
This product is a copyrighted freeware by D&A Software. Note: This product is not supported by D&A Software, please do not write to our support line with questions about PIM/LX.
What you need to download:
PIM/LX Program - This archive contains the PIM program. You will also need the new PalEdit (PE) program which works in conjunction with the PIM program. You can find the new version of PalEdit (PE) here.