This whole board is full of tips and pointers, so just start reading, especially in the new to vegetarianism forum, and the stickied tip of the day thread.
If you have specific questions, you can use the search function on the control bar to see if there have been some threads on the topic already. If not, or if they are all very old, you can start a new thread with your question/concern and people will try to help.
I know when I was just starting out, the most helpful thing for me was to read "Becoming Vegetarian" By Brenda Davis and Vesanto Melina.
This book has a "how to" guide, and really made me more confident with my diet.
Lokah Samastah Sukhino Bhavanto
'May everyone everywhere be happy
May the whole world be joyous'