Please explain me this scarf pattern

Can anybody please help me explain step by step to crochet this scarf, The pattern is not very detailel and clearly, so i'm really comfusing and i don't understand the pattern by follow the diagram . So here is the pattern of this scarf :

DROPS number 104-11

Measurement: Approx 25 cm x 130 cm

Materials: DROPS Alpaca from Garnstudio
100 g colour no 0100, off white
and use: DROPS Vivaldi from Garnstudio
100 g colour no 06, off white

DROPS crochet hook size 5 mm – or the hook size needed to obtain correct crochet tension.
Max prices as of 29.06.2010:
DROPS ALPACA - 3.00 GBP per 50 gr skein
DROPS VIVALDI - 4.30 GBP per 50 gr skein

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Note: This pattern is written in British English.
All measurements in charts are in cm. For conversion from cm to inch - click here.
There are different terms for crocheting in British and American English.
If this pattern includes crochet, click for "crochet terms" here.

Crochet tension: 7 x 7 squares = 10 x 10 cm with 1 thread in each yarn quality.

Pattern: See diagram M.1.
Crochet info: 1st row of each clover leaf (= 1 tr, 3 ch, 1 tr, 3 ch, 1 tr, 3 ch, 1 tr in same tr) crochet in middle dtr from previous clover leaf - see Fig 1 .

Scarf: Crochet 39 ch (incl 5 ch to turn with) with 1 thread of each quality on crochet hook size 5 mm. Read Crochet info! Continuing, crochet after M.1. until 1 pattern repeat has been completed in height. repeat 7th to 12th row until piece measures approx 130 cm – finish with 12th row.
Crochet edge: Crochet edge around scarf (i.e. the 3 sides with square pattern, not in clover leaves) on crochet hook size 5 mm as follows: 2 tr around first loop, * 1 ch, 2 tr in next loop *, repeat from *-*. Crochet each corner as follows: 2 tr, 1 ch, 2 tr.
Please go to this link for the diagram: