Hi Emily,
1 - CPIC_MAX_CONV must be set locally in the server where you are installing Solution Manager and for the user being used for the installation (<sid>adm)
2 - In regards to the windows version, the messages are showing old update dates, this makes me think you are using old installation packages. Which version of packages are you using to perform this install??
3 - Hostnames must be 13 character long maximum and your host currently is using 14 characters, so, yes, you'll need to rename it.
Also, you mentioned that you are using Oracle 11.2.0.3 which is going to have its support ended by jan 2016. I would recommend you to go to Oracle 12g or at least to 11.2.0.4 to guarantee a longer support lifecycle.
In time, I'm assuming that you are installing everything as 64bits and Unicode, right?
Regards,
Valdecir