WordPress Theme Help

I have purchased and instaleld a wordpress theme from theme forest,

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I have set the theme but am unable to get the full satisfaction and the working of the theme. I want some expert who can understand wordpress and its theme and explain me the basic functions of this theme and help me to add a product for sale.

I have the following problems

1) Adding a product for sale.
2) setting up tags
3) Creating specific Category images
4) creating blog post
5) multiple images for a product to sell.
6) overall tutorials of the complete theme.
7) Logo Change, little colour customization of this theme as per my other site http://www.gehnabazaar.com ( mainly the colour to be change to purple, background image, little creative header )
8) And To make the site upload little faster.( if possible )

I am attaching the help files which I got along with the theme.

Website Modifications

I have an auction website up, done in perl & mysql. Would like to have some small modifications done. I want to plug in my proboards forums instead of the single chat room, and have it return to my auction website when done.

I also want a “single” login for all site functions.
Currently you have to login over and over again for different activities, ie., post an item login, post an item, login again…etc…very tedious.

And I would like a secure method for listing & sending downloadable ePatterns (like eBooks in PDF format) added. I might also want to change around some other things, but I wanted to get some feedback on these first as well as an idea of the costs. http://www.krazzykats.com