if you cannot play those flash games and only letters is shown you should follow this:
1.register (click register at the top)
2.confirm to your valid email (the email you write/type when you are registering)
3.log in (click log in at the top)
4.click profile (at the top)
5.click preference (at the top)
6.find allow html and then choose yes
7.and your done, click the play picture at the top or find flash game on the category,
choose game then you can now play it
note: if you cant still play just try to download adobe flash or post here so i can fix it
thnx........