I went over through my settings again and saw all rights were set properly for the user.
The rights for every new user is set as:
view fullimage
upload
view gallery
view search
post comments
user
but the thing is when i check the managed albums section from the user profile( i am having a primary album that has been created automatically by the register.php script and a sub album underneath it) i found out that the primary album checkbox ticked with only the edit checkbox ticked whereas the subalbum checkbox isnt ticked but its edit,upload and view unpublished checkboxes are ticked. Any tips about it?
I dnt know what happened...I switched om the user group(till now i had this option deactivated) option and registered a new user. The upload option now works. Then just out of curiosity i again deactivated the user group option and then again registered a new user. It now shows the upload option too without the error. Anyhow it is working well on my wampserver but dont know whether these errors will occur when i host my site. Finally, a big thank you...You guys are great..!!