Just a few suggestions re the Events+ plugin:
1) On the calendar page, could you place the links for 'Prev' and 'Next' alongside the 'Events for <Month> <Year>' page title please? They're not very easy to spot at the foot of the calendar - particularly being so small. Also, calling the links 'Previous Month' and 'Next Month' is more explicit.
2) On the individual event page, it would be great if you could place the registration button options at the end of the event description, as well as at the top. Much easier if the description's quite long.
3) Following on from 2) it would be good to have a shortcode that simply inserts the registration buttons for an event wherever you want them to be. Again, really good for particularly long event descriptions for options to be placed regularly in the text.