Ooooh, just noticed this place as well (I'm noticing a lot of new places today... :D) Let's get down to some answers then:
Icer:
Yes, the Espeon and Umbreon are always male. No day and night as far as I know of (in Colosseum at least). Yes, you could do that, but you could just do it once you've got the National Dex in FR/LG.
Jess:
I haven't played on it in ages, but I think it's something either: 3500, 9800 or 10000. Whichever seems the most reasonable.
demonchaos916:
1) No
2) Via a GBA-GCN connecting cable
3) No
4) No, but FR/LG and Pokemon Channel (UK only) do
5) Don't use hacks so can't answer that question.
~ MCD