What do you mean "the user transactions?" If you are referring to auditing of actions in the Alfresco repository, the short answer is "yes."
You have to turn on Auditing for each method that you want to audit; look for instructions for setting up auditConfig.xml. Once it is turned on, you can then see how to display the audit trail using the Freemarker template, "show_audit.ftl", that is included in your installation. At least, it seems to be included in 3.0 and later; I can't speak to earlier versions.
