Restored database does not contain backup data!

I have the following problem. I am trying to backup database and restore it
on another server (I need to do this to make a standby instance from master
instance). On the standby database I have 1 schema, "MASTER". When I restore
this database, the restored one does not contain any schema "MASTER". When I
look into "Owned users" using SQL Studio, on restored instance, I only see
some mystical user "DBSERVICE". When I look into ALL_TABLES, I don't see
anything other than 4 tables owned by SYS.

Here are the details:
Source instance (to backup): 7.6.00 (build number I'm not sure - how can I
tell? - but it is either 16 or 32), 64-bit version, SUSE (by the way, how
can I check the build number and the full version info?)
Target instance (to restore): 7.6.00.27, 64-bit version, SUSE

I do a full data backup on the source instance to a file using Database
Manager wizard as described in Maxdb documentation.
I create backup instance with the following parameters:

param_startsession
param_init
param_put MAXUSERTASKS 100
param_put DEFAULT_CODE UNICODE
param_put _UNICODE YES
param_checkall
param_commitsession
param_addvolume 1 LOG LOG_001 F 2000
param_addvolume 1 DATA DAT_001 F 10000
db_admin

Then I restore it from the backup file and activate:

medium_put burvis /opt/sdb/backup/BURVIS_COM FILE DATA
recover_start burvis
db_activate dba,dba
load_systab

What is wrong?

Eduard