In hopes of dispelling a little confusion... your old DTRPG or your old RPGNow password shoudl work on either site... the merger was setup to allow both passwords. But if you did a password change, it'll change your current/main password I think which would be the DTRPG password. Not sure what CUSTSERV did in this case, but you shouldn't have had a problem in the first place as the system should have let you in. Not sure how you got locked out either unless there is a bug in the password change routines ... we'll look into it.
The reason the two sites are seperate is that we choose to retain the branding that has already taken place on both sites. RPGNow caters to the indie publishers and customers, while DTRPG caters to those who are mainly looking for print books from larger publishers in PDF. Our marketing and ads are all geared toward that.
But that said, any link to one site should work to the other. It should be trasparent which URL you go to.
Enjoy the sale!
James
P.S. The free list is generated from the one single database, so it's imposible for them to be different.