with all the capital raisings going around i've been making a...

with all the capital raisings going around i've been making a bit of money buying into them and then selling them at a profit e.g.mqg. However, I will need to make some more capital losses so that i don't pay capital gains tax on the profits.

If i sell a company and then buy it back the same day for the same amount of units the tax man won't look kindly on this -a wash trade i think it is called - is it possible to do this and if not is there another way around this?

also
I'm new to trading the stockmarket and recently been making around 10-15 trades a week (if you include selling as well as buying as a trade)
what are the tax benefits of the above -if i apply to be seen as a trader -is there a number of trades you need to be doing?
what are the benefits e.g. claiming trading costs such as brokerage fees? any reduction in capital gains tax after selling etc...?
sorry lots of questions - any answers would be much appreciated