Magento bug fixes - sanjay2004

Description In Magento: 1) i need tutorial how to use import/export function...i would like to change my prices in .csv and re-import into magento...however, getting error: Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 51 bytes) in /home/pureandb/public_html/lib/Varien/Data/Tree/[login to view URL] on line 197 2) fix all automatic email generation - transactional emails not working....including newsletter signup 3) 1 other error i'm getting in description field.....another setting problem....(i can explain) 4) help organizing site map feature....help with developement.... 5) adding more flat rate shipping modules....