With Most Theme you have the possibility to import any of the demos with just ONE click.
Check these PHP config variables before demo import:
post_max_size 512M
upload_max_filesize 512M
max_input_vars 5000
max_execution_time 300
max_input_time 300
memory_limit 512M
Please note that MadSparrow is not responsible for content loss, database errors and such, which may happen to your WordPress install upon an incorrectly applied theme update.