never used dreameweaver, so canthelp you with that one, but. to get your terminal to recognise mysql you need to put it in the PATH variable. i think its stored in your AUTOEXEC.BAT file on windows (i use linux), which is probably in your C:\ drive.
the line your looking for looks something like....
PATH C:\WINDOWS;C:\WINDOWS\COMMAND;
just add the path to mysql to the end of it. eg
PATH C:\WINDOWS;C:\WINDOWS\COMMAND;C:\mysql\bin\mysql.exe;