Such a general overview would really be best served by getting a book on the subject I’d imagine. Perhaps someone else can give you some useful key bullet points but really, if you’re looking to install and run SolMgr then at the very least a good book on the subject would be recommended. The SAPPress book is meant to be good, though I’ve only skimmed it myself:
Does your company not have any in-house knowledge on Solution Manager? Or a support contract in place with a consultancy firm who could help? In fairness I have installed Solution Manager (v3.2) myself in the past quite easily, but configuring it, integrating it with your landscape and getting the most out of it without any prior experience is another question. Best of luck with it!
SAP Basis Consultant