Cam,
You've pick a slow grower, so you'll have to exercise patience with you're slipper (don't you just hate that)
Keeping it moist coupled with higher lighting levels will help it grow faster.
As I've said in the past to you, I've had my fair share of
seedlings that take onward to 4 years just to see it bloom, some will take even more time.
If I knew then what I know now, I would have bought much bigger
Very young plants will need alot more time to bloom then plants with already multi-growths.
Don't give up, you're paph is just slower then some others -- Timeing is everything