Fix Analytics setup;improve the GA-adwords integration

Need some assistance improving the functionality of my web-site analytics reports and its integration with adwords. I have some difficulties tracking the landing pages (on subdomains) in the analytics and it seems that the integration of the analytics and adwords isn't 100% functional. I need someone with good knowledge of analytics and adwords in order to make sure all the conversion stats are functioning and the integration between the analytics and adwords is flawless. No need to optimize the adwords (sem work). just improve the settings so as to make sure there's full functionality of both adwords and analytics with the current landing pages.