I have the bot for BTCe. Had no issues with their support when I ordered it. I sent them an email using the instructions you just posted. They sent me an email back a few minutes later saying I could pay using BTCe code, BTC, or LTC and that once there was 5 confirmations they'd pass on my API key to the programmers who would then email me a license. Because the programmers are located in Ukraine and there's a time difference, they said it may take up to 12 hours and to email them back if I had not received my license. I sent them the requested amount of BTC and after 2 hours I received a zip file containing my bot's account information and a license file.
Setting up the bot required me to type in account information that was attached in the zip file that they sent me. Once logged in I selected BTCe as my exchanged and typed in my API Key and API Secret. That's about it. After that I messed around with the bot and tried creating my own rules. I did horrible so ended up downloading some pre-made rules off the site and changing them a little. Doing much better now.
Over all I had a good experience.