Worst hosting company there is. In the almost 15 years I've been with them I've had all my data lost once, have had to be switched servers twice, have had numerous downtimes, have had my website suspended multiple times because of hackers, and a whole host of other problems. Do yourself a favor and if you can afford to spend more money elsewhere, DO IT!
No. An SSL can only be installed on a single "hostname", which is one variation of one domain name. SSLs do not cover multiple domains, or multiple subdomains. For example, you can install an SSL on store.yoursite.com, but then it won't cover yoursite.com, and vice-versa. It only encrypts the hostname it's installed on. (A Wildcard SSL covers every hostname of a single domain.)
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