help required from all amibroker friends

Hi friends ,
This is my first post here...I NEED Ur HELP..I M USING AMIBROKER 5.4(downloaded from net )....WHENEVER I TRY Try to use it.i receive the meeasge that this version is unregistered...Can u help me with the following issues....
1. How can i get the registered version.?
2....though registerstion key is available and can easily be utilised to to run amibroker..... but is it legal to run amibroker this way by using the brokey.dll from other sources???/
3.... i do not mind buying buying amibroker and get the registered version....but i have another concern, i am sub broker to one of the leading broking house,...i want to if i can utise this version to circulate to my client who are interested in using amibroker with a few alf codes ???

Pls helpe on this as i do not want to do something that is not illegal???

Regards
sumit

Thnx shekhar,
I had never expected that these forums can be so useful and can be of so help to people like us......Thnx to traderji and all the active members who keeping such forums alive...I never believed in such forums and always preferred to take help from personal contacts with IT knowledge....I posted this query as a last effort from my side to get resolution to my queries

Never expected that these forum will give me instant resolution to my queries....
Long live the forums like this and the members who keep these forums alive....
As another help...can u help me to get any afl that which can let me trade in nifty during intraday...if possible ple send me the dos and donts also while trading on these afl

Regards
Sumit