Hi Basheer
You can be a gold member very easily in SPK. For becoming a gold member, you need to have only 500 points. Just post quality resources on recent topics. That will give you very good cash credit and points. Only points are calculated for membership levels.
Post accordingly. Just have an eye on the forum messages regarding latest competitions in SPK. If you can post for those competitions, it will surely give your lots of points and cash credit. Presently, SPK is having many contests.
Be active in forum. Participate in forum discussions. It's an easy way to know other members and to get good points. Even there are contests based on forum section.
A small suggestion: Becoming a gold member is important only to get an adsense account. Just focus on your posts and earning. Write good resources and try to earn. Member level will come automatically.
Regards
Lijin T