Excel 2007 : Having Trouble Using the Index and Match Functions

Your MATCH syntax is wrong:

MATCH(J34;6:6;3:3)

3:3 is not a valid argument.

it can be only the number -1, 0, or 1. Match_type specifies how Microsoft Excel matches lookup_value with values in lookup_array.

If match_type is 1, MATCH finds the largest value that is less than or equal to lookup_value. Lookup_array must be placed in ascending order: ...-2, -1, 0, 1, 2, ..., A-Z, FALSE, TRUE.

If match_type is 0, MATCH finds the first value that is exactly equal to lookup_value. Lookup_array can be in any order.

If match_type is -1, MATCH finds the smallest value that is greater than or equal to lookup_value. Lookup_array must be placed in descending order: TRUE, FALSE, Z-A, ...2, 1, 0, -1, -2, ..., and so on.

If match_type is omitted, it is assumed to be 1.
Remarks

MATCH returns the position of the matched value within lookup_array, not the value itself. For example, MATCH("b",{"a","b","c"},0) returns 2, the relative position of "b" within the array {"a","b","c"}.
MATCH does not distinguish between uppercase and lowercase letters when matching text values.
If MATCH is unsuccessful in finding a match, it returns the #N/A error value.
If match_type is 0 and lookup_value is text, you can use the wildcard characters, question mark (?) and asterisk (*), in lookup_value. A question mark matches any single character; an asterisk matches any sequence of characters. If you want to find an actual question mark or asterisk, type a tilde (~) before the character.

Your match type value is not valid, I suggest you to make it 0:
See this example:

This will result in error:

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This should be the correct forumula:

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Sorry zbor, I'm Iate to see your post.