A decrease of traffic, ranking.

Hi - I changed lately the website template, I also modified the main/guest page. I used to have some relevant keywords with links to the appropriate forum. since I made this changes hoping to make my website more user friendly.. the opposite happened :( for example I used to google "Morocco Travel Forums" my website used to be listed in the first page: position 2, now it's not found anywhere and same happened to other keywords.
I start this thread in the Critique section hoping some feedback and advice to help me resolve this issue:
Your opinion when you have time

As brian suggested, I'm trying to validate my template, I managed to norrow the total of the errors from 160 or something to 13 now..
I put back an intro with as much keywords and cleaner design.

Am I missing something? How long it might take me to regain the previous position or even better.

any tips, advice are much appreciated.

I'm not happy with my website performance and hope will give it a boost.

Thanks guys in advance.

Morocco Travel Forums

I responded with some questions here:
Your opinion when you have time

Originally Posted by search-engine-seo

a) Remove HTML errors. If possible go for W3C validation
b) Dont overstuff your website with "TARGETED KEYWORDS"
c) Maintain same heirarchy of links ie MAIN WEBSITE/ARTICLES/ARTICLE 1
d) Make sure that your design is SEO friendly

You have overstuffed your keywords TAG. Keep your keyword density to 2-5% of the overall content.

thanks