Yes, it is possible to test SIMBioMS software by using test instances:

http://simbioms-pub.mii.lu.lv/AIMS/ - test instance for AIMS

http://simbioms-pub.mii.lu.lv/SIMS_T2D/ - test instance for SIMS Types 2 Diabetes configuration

http://simbioms-pub.mii.lu.lv/SIMS_MS/ - test instance for SIMS Metabolic Syndrome configuration

http://simbioms-pub.mii.lu.lv/SIMS_AD/ - test instance for SIMS Autoimmune Disease configuration

http://wwwdev.ebi.ac.uk/microarray-demo/sail1a/  - test instance for SAIL

All these test instaces can be accessed in read only mode by using login name "test" and password "test". If you wish  an access allowing you to create your own entries, there is a form you can use to apply for your own account which will provide such option.