You may pay at any time up to the 10 weeks, and you should get a reminder or two before the 10 weeks is up.
There is no benefit to not paying quickly as your Membership will be back dated to the day you register with us.
There will be some restrictions on what you can see and do on the forum and on the wiki according to whether you are using the free trial, or have paid to become a full member.
Voting and participation in OPGO's on-line democracy is for Members only.
If you type in www.opgo.co.uk, or click the Home button on the wiki you will get taken to your homepage with different content on the Members Home Page to the Registered Users Home Page.
The original document is available at http://opgo.co.uk/twx/10+Week+Free+Trial