A press release from the Hub confirms the two episodes For Whom the Sweetie Belle Toils and Leap of Faith, albeit with a different airing dates and adds extended synopses. You can view the document here.
Horse-News earlier reported skepticism on some of the validity of the Zap2It information that was provided. And sure enough, they goofed up a bit.
These are the episode titles, synopses and airdates reported by the Hub Press release:
March 15 – “Maud Pie”: Pinkie Pie’s sister Maud is coming to Ponyville, andAs expected, the previously recorded dates for airing (for BOTH episodes) by Zap2It is NOT on Sunday, March 30th. What's more interesting is that Zap2It ALSO messed up the title.
Pinkie can’t wait for her friends and sister to meet and become best friends. But
when it turns out that Maud is very different than was described, the girls find
bonding with her a challenge.
March 22 – “For Whom the Sweetie Belle Toils”: When Sweetie Belle becomes
angry with Rarity for stealing her spotlight, she deliberately sabotages a costume
for one of Rarity’s most elite clients. Later that night, Sweetie Belle is paid a visit
by Luna in her dreams.
March 29 – “Leap of Faith”: The Flim Flam Brothers’ cure-all tonic promises
Ponyville citizens a chance to be rid of their ailments. Applejack has her doubts
about the merits of the tonic, until Granny Smith begins taking it and appears to
be cured of all her aches and pains.
"Sweetie BellS Toils"? Yeah, something a bit off about that.