I believe you want to ignore your drive's offset and use the disc's offset. BTW, the best way to learn this stuff is to try dumping a disc already in the database and see if it matches. That way you can be sure you're doing it right, too.

There are probably tricks and tools to do this, but the easiest way is to simply mount the image in Daemon Tools (or a similar program) and rerip it in the desired format.

Again, mount and rerip it as you would a disc. Then check to see if the ripped files match the database.

Use this for a cuesheet:

+2 seems correct.. +8 is the value that you use for dumping

You can combine the tracks using the command link: if you have all the .bin files named in the right order in a folder you can do 'copy /b *.bin game.bin' to create a single binary with all the tracks. You'd still need a proper .cue then though. I don't remember how this is done for single binary files, so I hope someone else can help you with that.

For games without audio tracks you can use a generic .cue.. for psx (which is mode2) you can use the following:

About converting previous one binary dumps: you could try mounting this dump with Daemon tools and then dump it again in EAC, but you'd have to know the correct offset values.. also, the .cue would have to contain the correct gaps.