1)  Plans:

Click on pictures to zoom.

Code For PIC microcontroller of following device available here.
ASM source code is available here.
 

NEED HELP:
                                Any corrections, sugestions are Welcome.
                                Somebody, please make nice professional schematics and pcboard layout, i'll put it here.
                                       potom@techfreakz.org
 

2) Software:
                        Last Network Wizards Ctek dos distribution.
                        SunOS Sparc ctek distribution.
                        Scan1c (Scanning software).
                        4712 mod programer.
                        CIAscan.
                        My disasembly of dos ctek library  ( obsolete, finally NW decided to make Lib source code public).
                        NW ctek library source code.
                        UCTEK program and ctek library for Linux/Unix.   BETA
                          GameBoy and Windows CE software                     NOT SOON

      If you wanna write own stuff read CTEK Protocol FAQ
 
 

3) Where to buy Ctek:
                                 Network Wizards no longer produces Cteks.
                                                 But few people still making them.
                                                 I recommend you to buy from   MrEthos <cybertec@shore.net>
                                                 price about  $100-150.
 

4) Ctek Links:
                            [Dopeman]'s Digital Regime.
                            Network Wizards (creators of ctek ).