WINSAMM
In WINSAMM, at the left drop down menu, go to the 'About WINSAMM' window. Version number is included in the top line and looks lke 1.2.16C2222 where the digits prior to C are the version number and the ones after are the serial number. When using a trial, serial number will read TRIAL

SAMM
Version number is specified at the bottom of the main menu screen. You will see a string at the bottom that looks like this:
In SAMM 8:
[SSUU -V8.1.92-C4567]
In this example,
-SSUU denotes the configuration (single station unlimited accounts)
-Version level is beetween the V and C: 8.1.92
-4 digits following the C are the serial number: 4567

in SAMM X the string is in the following format
[SSUU-V10.1.41-C4567-123456]
In this example,
SSUU denotes the configuration
-Version level is beetween the V and C:10.1.41
-4 digits following the C are the serial number: 4567
-6 digits following the serial number are reference number for MCDI

In every version of SAMM if you see:
SSUT: it means you are unlocked temporarely, usually while waiting for an access code from MCDI.
SSUD: you are using the demo version which is a full workiing version but locked to 75 accounts and one station.

SSU2: 200 accounts, one station
SSUU: unlimited accounts, one station

SMUU1: unlimited accounts, one station treating alarms and unlimited administrative stations
SMUU2: unlimited accounts, two stations treating alarms and unlimited administrative stations
SMUU3: unlimited accounts, three stations treating alarms and unlimited administrative stations
SMUUU: unlimited accounts, unlimited stations