These databases are now available from me (Ed Gilbert). I am supplying them on an external USB hard drive. The price is $170, which includes shipping to anywhere within the continental USA. For other locations, the price is $30 to $50 additional. Email me and I will send you an exact amount.
The USB hard drive contains setup programs to install the WLD (win/loss/draw) and MTC (moves to conversion) databases for positions with 2 through 10 pieces and up to 5 pieces on a side. These databases presently work with the KingsRow checkers program. If you are a programmer and are interested in using the databases with another program, there is a driver available which makes it relatively easy to do this.
If you are wondering what the MTC databases are used for, there is some more information about them here.
To use these databases your PC must meet some minimum requirements for disk space and RAM. The setup program allows either a small or a full installation. The full installation installs all the files. The small installation installs everything except the files for 10-piece positions that have 3 or more kings on a side.
I will accept payment with PayPal or a money order. PayPal is much preferred, and US currency only. To purchase the databases, send me an email and I will give you a PayPal account that you can transfer payment to.