I downloaded Mr. Recorder from Nokia Ovi Store and accidentally lost it. How can I recover that?
Recovering your lost application that you purchased from Nokia App Store is easy. Upgrade your Nokia Store client in phone and login using same details by which you purchased copy of Mr. Recorder. Now navigate to Mr. Recorder and click 'Downoad'.
For more info have a look at Nokia Ovi Blog

In my application settings, the beepless mode is ON, but still I hear beeps in recording. Why?
We are sorry for the inconvenience caused to you in beepless call recording. This feature is experimental and we are working on it to fix the beep problem. Beepless recording does not work on all devices and we recommend you to first test the free lite version and purchase license only if you are satisfied with the performance of trial version. While testing the lite version please make sure your beepless mode is on.
Warning:: Recording the calls without in knowledge of remote party is an offense in some countries, so familiarize yourself with the law first.

How can I transfer my recordings to PC?
Recorded files are saved in folder "Others\MrRecorder" on Memory card or Phone memory depending upon your settings. Connect your Phone to PC and browse to "Others\MrRecorder" to copy the recorded files on to PC.