Where to find version of installed extension in Magento system?

Check in file system

There is only one common way to find module version. It is in file system:
app/code/community/Artio/{module_name}/etc/config.xml
OR
app/code/local/Artio/{module_name}/etc/config.xml

Then look for this tag:

Please, rewrite {module_name} with real module name - e.g. UXPack, MTurbo etc.