Answer:
Well you ARE supposed to buy the magazine, but because I'm really nice and had the magazine right in front of me when I saw this question, I'll tell you them.
25th March - LittleMissWinner
26th March - ChavDiary
27th March - HeyBigSpender
28th March - PrincessStorm
29th March - KatieClobber
30th March - BookForever
31st March - SpongeTee
1st April - WagTime
2nd April - GirlieTime
3rd April - CleanHands
4th April - BackHand
5th April - SassyFace
6th April - CuteMoxie
7th April - SayEhOh
8th April - FunkyNails
9th April - StayTrimmed
10th April - SharpRead
11th April - ForestFun
12th April - GetStuckIn
13th April - GorgeousBeauty
14th April - GoodPrize
15th April - Splitsville
16th April - RobIsFit
17th April - SnugMoby
18th April - WinningTunes
19th April - RockingOutfit
20th April - GoodGossip
21st April - GetAHead
22nd April - KeepItClean
23rd April - PowerTee
24th April - WhoLovesYa
25th April - YummySkin
26th April - ScaryRead
27th April - BoyDiary
28th April - SortedBarnet
There you go.
If you look on this site abit later, I might post the June answers. (: x