Open Cart Search Box Error and Minor Theme Changes

Hey everyone, Looking for someone skilled in Opencart & eCommerce websites to fix two errors and make a few minor changes to an Opencart theme. (V1.5.6) Would like people who have experience with Opencart specifically, or people who are absolutely sure they can accomplish the fixes and make the store work excellent again! Links to portfolios & past work would help. If you'd like to take a look, you can find the site & changes at: [login to view URL] KNOWN ERRORS: -Fix the following error in Search Box area: (Global / All pages) "Notice: Undefined variable: filter_name in /hermes/bosoraweb083/b382/[login to view URL] on line 135" -Make sure no other errors are effecting the store front or admin panel. -Error when searching / on actual search page: "Notice: Undefined variable: filter_name in /hermes/bosoraweb083/b382/[login to view URL] on line 14 Notice: Undefined variable: filter_sub_category in /hermes/bosoraweb083/b382/[login to view URL] on line 43 Search in subcategories Notice: Undefined variable: filter_description in /hermes/bosoraweb083/b382/[login to view URL] on line 50" MINOR THEME CHANGES: -Take out "Designed by.." line on bottom pages. (Keep "BW Copyright 2013") -Add Copyright symbol next to (left of) "2013" on bottom pages. -Take out the "Designed by.." line on the bottom right pages and add different wording. (Wording Coming Soon) -Take out the RSS & Skype icon up top. -Change all Product Tag links from the regular dark blue to the aqua blue color to match & go along with the theme. -Add a bit of space below the product tags and the tan footer section. -Move category module to left side. (If the theme will allow this)