Planestation Group

Edmond J,i know little about shares,and less about tax,lets say you lost £50,000 on planestation,does that mean that you can get the £50,000 back on gains,also is there a time limit that you can claim on your loss,or can you rollover from year to year,providing you have not made a claim to inland for any gains.
Also i think what 10JimB thinks is right about planestation,would it make sense to form a group from people who feel the same,and try and get some answers;or would it be a waste of time.
Regards