Bogrick Grey Mane

Hi Hi Flittery Heart, the maximum size for a users avatar is 150 x 150 and 100k. The users you see that have bigger avatars are ponies that are either subscribers or have made a donation to help us run the forums.
 
Donators and Subscribers get certain perks that come as a way of thanking them for their help in keeping the MLP Forums running.
 
For more help on avatars and signatures you can have a look in the 'FAQ' section, and if you are interested in making a donation or becoming a subscriber you can check out the perks you get 'Here'
 
I hope this is of some help and answers your question.

Help on how to use the calendar can be found here in the  'Help Topics' section of the forum.
 
I hope this answers your question, but if you need anymore help please feel free to ask me

To post in some sections of the site you need to be a 'Muffin' and have made 5 active posts in the mane area of the site, 5 is a relatively low number, used to keep spambots from getting into the RP section. They're generally noticed and banned before they ever reach 5 posts.
To reach 5 posts, simply post any response that offers contribution to a thread in any forum of the site, with these exceptions:
    Welcoming Plaza
    Testing Forums
    Roleplay OOC sections
    Fan Clubs subsection
    Any of the Cloudsdale Colliseum subsections (Forum Games, Ask a Pony or Forum Lounge)
 
Since you have now made more than 5 posts and have reached the level of 'Muffin' you should be able to post and start topics in all sections of the forums.
If you have any further questions, feel free to look around or post in our Site Questions & Tech Support forum! "