hehehehehe TBT what a manic journal! I can't believe you have 6 entries already. Seems like you're having fun with all the features and stuff. I'm not sure how to work half of them myself. My advice is keep messing about with them, you'll figure them all out in the end.
I don't see anything wrong with the e-card to the person you aren't going to see for ages. Because if the feelings are mutual they will make efforts to get into contact with you. But if the feelings aren't mutual or they just want to be mates or whatever then at least you wont have to see them for a while and get embarrassed and awkward.