Suricata

Hi,
I have installed the current stable version on my system LVCC based Ubuntu 12.04 LTS.
I downloaded and deployed rules from the .gz package. I manualy installed emerging-icmp.rules in the goal of eliminate the icmp rules error but a warning remains.
I was unable to find the virus rules.

Running sudo suricata -c /etc/suricata/suricata.yaml -i eth0

Everything work fine, except the following:

2/10/2013 -- 02:37:05 - <Warning> - [ERRCODE: SC_ERR_NO_RULES(42)] - No rules loaded from /etc/suricata/rules/emerging-icmp.rules
2/10/2013 -- 02:37:06 - <Error> - [ERRCODE: SC_ERR_OPENING_RULE_FILE(41)] - opening rule file /etc/suricata/rules/emerging-virus.rules: No such file or directory.
2/10/2013 -- 02:37:32 - <Warning> - [ERRCODE: SC_ERR_FOPEN(44)] - Error opening file: "/etc/suricata//threshold.config": No such file or directory

If it's not new, please ignore it. I am new to the project so there will be a learning curve, I agree.
Have a good one,
Marc-Andre!