As for kissing, it is very difficult to apply the canons WITH WISDOM in today's situations. Nearly all marriages in the patristic period were arranged and often the spouses to be never met one another prior to the wedding ceremony itself. Furthermore, as an additional safeguard against sexual sin, St. John Chrysostom advocated the finding of a spouse as soon as a young man was old enough to start having a sexual drive.
From a practical viewpoint, I know of no instances in America other than those in strict protestant circles where one could realistically expect to find a spouse without some sort of premarital physical intimacy-- i.e. kissing. Combine this with the American expectations of putting off marriage for later and later and you have a recipe for disaster.
As for homosexuality, let me disspell a misconception right now. Homosexuality is not a "personality trait" nor a "part of personhood"-- it is a BEHAVIOR. People CHOOSE their BEHAVIORS. Temptation may lead to a specific behavior but we don't choose our temptations-- only how we react to them. The key is to create a distance between stimulus and response. Modern homosexual theorists want to close this distance thereby implying an unavoidable causality.
As for the debate of whether homosexuality has organic or psychological causes, let me state that all of the research points to only only two very strong correlates to homosexual behavior-- (1) a weak / non-existent male father figure and (2) a strong domineering female mother figure. Other strong correlates, though not as strong are sexual abuse and although too early to study at this time in society, I'm sure that we'll see homosexual parenting contributing to homosexual behavior. Nearly all counselors that specialize in "sexual re-orientation" ("curing" a homosexual) say that it is plausible, workable, and nowhere near impossible.
An interesting note is that Christian authors in the times from the 1950's to the mid 1970's often quote parenting involving unclear gender roles as a notable causal factor in homosexuality. You will not find books published any longer with those views. Interestingly enough, the American Psychiatric Association used to classify homosexuality as a mental illness until a very persuasive homosexual lobby persuaded them to change this.
An excellent source of information is an article by Earle Fox on homosexuality. Here is the link:
http://www.massnews.com/2004_editions/0 ... mphlet.htm
--Chris